Saturday, 23 May 2015

642-874 ARCH Designing Cisco Network Service Architectures

642-874 ARCH Designing Cisco Network Service Architectures

Exam Number 642-874 Arch
Associated Certifications CCDP
Duration 75 minutes (50 - 60 questions)
Available Languages English, Japanese
Register Pearson VUE

Description
The 642-874 Designing Cisco Network Service Architectures (ARCH) exam is the exam associated with the CCDP certification. This exam tests a candidate's knowledge of the latest development in network design and technologies, including network infrastructure, intelligent network services and converged network solutions. Candidates can prepare for this exam by taking the ARCH Designing Cisco Network Service Architectures course.

Exam Description
The ARCH Designing Cisco Network Service Architectures (ARCH) v1.0 642-874 exam is a 75-minute test with 45−65 questions that are associated with the Cisco CCDP® certification. This exam tests a candidate's knowledge of the latest developments in network design and technologies, including network infrastructure, intelligent network services, and converged network solutions. The exam is closed book and no outside reference materials are allowed.

The following topics are general guidelines for the content likely to be included on the exam. However, other related topics may also appear on any specific delivery of the exam. In order to better reflect the contents of the exam and for clarity purposes, the guidelines below may change at any time without notice.

1.0 Design Advanced Enterprise Campus Networks 30%
1.1 Design for high availability in enterprise networks
1.2 Design Layer 2 and Layer 3 campus infrastructures using best practices
1.3 Describe enterprise network virtualization considerations
1.4 Design for infrastructure services

1.4.a Voice
1.4.b Video
1.4.c QoS

1.5 Identify network management capabilities in Cisco IOS Software

2.0 Design Advanced IP Addressing and Routing Solutions for Enterprise Networks 24%
2.1 Create summary-able and structured addressing designs
2.2 Describe IPv6 for campus design considerations
2.3 Create stable and scalable routing designs for EIGRP for IPv4
2.4 Describe IPv4 multicast routing
2.5 Create IPv4 multicast services and security designs
2.6 Create stable and scalable routing designs for OSPF for IPv4
2.7 Create stable and scalable routing designs for BGP for IPv4

3.0 Design WAN Services for Enterprise Networks 8%

3.1 Describe Layer 1–3 WAN connectivity options

3.1.a Optical networking
3.1.b MetroEthernet
3.1.c VPLS
3.1.d MPLS VPNs

3.2 Describe IPsec VPN technology options

3.3 Evaluate WAN service provider design considerations

3.3.a Features
3.3.b SLAs
3.3.c WAN backup

3.4 Create site-to-site VPN designs with appropriate technologies, scaling, and topologies

4.0 Design an Enterprise Data Center 32%

4.1 Describe data center network infrastructure best practices

4.2 Describe the components and technologies of a SAN network

4.3 Describe integrated fabric designs using Cisco Nexus technology

4.4 Describe network and server virtualization technologies for the data center

4.5 Create an effective e-commerce design

4.6 Design a high-availability data center network that is modular and flexible

5.0 Design Security Services 6%

5.1 Create firewall designs

5.2 Create NAC appliance designs

5.3 Create IPS/IDS designs

5.4 Create remote access VPN designs for the teleworker




QUESTION 1
Refer to the exhibit.



Which recommended practice is applicable?

A. If no core layer is deployed, the design will be easier to scale.
B. A dedicated campus core layer should be deployed for connecting three or more buildings.
C. If no core layer is deployed, the distribution switches should not be fully meshed.
D. A dedicated campus core layer is not needed for connecting fewer than five buildings.

Answer: B

Explanation:


QUESTION 2
When a router has to make a rate transition from LAN to WAN, what type of congestion needs
should be considered in the network design?

A. RX-queue deferred
B. TX-queue deferred
C. RX-queue saturation
D. TX-queue saturation
E. RX-queue starvation
F. TX-queue starvation

Answer: F

Explanation:


QUESTION 3
To which switch or switches should you provide redundant links in order to achieve high
availability with reliable fast convergence in the enterprise campus?

A. to a core switch running Cisco NSF and SSO from redundant distribution switches connected
with a Layer 2 link
B. to a core switch running Cisco NSF and SSO from redundant distribution switches connected
with a Layer 3 link
C. to two core switches from redundant distribution switches connected with a Layer 2 link
D. to two core switches from redundant distribution switches connected with a Layer 3 link
E. to two core switches running Cisco NSF and SSO from two redundant distribution switches
running Cisco NSF and SSO

Answer: D

Explanation:


QUESTION 4
Which of these statements is correct regarding Stateful Switchover and Cisco Nonstop
Forwarding?

A. Utilizing Cisco NSF in Layer 2 environments can reduce outages to one to three seconds.
B. Utilizing SSO in Layer 3 environments can reduce outages to one to three seconds.
C. Distribution switches are single points of failure causing outages for the end devices.
D. Utilizing Cisco NSF and SSO in a Layer 2 environment can reduce outages to less than one
second.
E. NSF and SSO with redundant supervisors have the most impact on outages at the access
layer.

Answer: E

Explanation:


QUESTION 5
When is a first-hop redundancy protocol needed in the distribution layer?

A. when the design implements Layer 2 between the access and distribution blocks
B. when multiple vendor devices need to be supported
C. when preempt tuning of the default gateway is needed
D. when a robust method of backing up the default gateway is needed
E. when the design implements Layer 2 between the access switch and the distribution blocks

Answer: A

Explanation:

Sunday, 10 May 2015

200-120 CCNA Routing and Switching

200-120 CCNA
Cisco Certified Network Associate Exam

Exam Number 200-120 CCNA
Associated Certifications CCNA Routing and Switching
Duration 90 Minutes (50-60 questions)
Available Languages English, Japanese
Register Pearson VUE

Additional Resources
CCNA Composite Exam: The 200-120 CCNAX is the composite exam associated with the Cisco CCNA Routing and Switching certification. Candidates can prepare for this exam by taking the Interconnecting Cisco Networking Devices: Accelerated (CCNAX) course. This exam tests a candidate's knowledge and skills required to install, operate, and troubleshoot a small to medium size enterprise branch network. The topics include all the areas covered under ICND 1 and ICND2 Exams.

Cisco Certified Network Associate v2 (200-120)

Exam Description
The 200-120 composite CCNA v2 exam is a 1.5 hour test with 50 – 60 questions. The 200-120 CCNA exam is the composite exam associated with the CCNA Routing and Switching certification. Candidates can prepare for this exam by taking the Interconnecting Cisco Networking Devices: Accelerated (CCNAX) v2.0 course. This exam tests a candidate's knowledge and skills required to install, operate, and troubleshoot a small to medium-size enterprise branch network. The topics include all the areas covered under the 200-120 CCNA exam.

The following topics are general guidelines for the content likely to be included on the exam. However, other related topics may also appear on any specific delivery of the exam. In order to better reflect the contents of the exam and for clarity purposes, the guidelines below may change at any time without notice.

Need CCENT, CCNA or CCNP Study Tools to prepare for your exams? A Cisco Learning Network Premium Subscription is the ultimate resource for CCENT, CCNA Routing and Switching, and CCNP self-study.

1.0 Operation of IP Data Networks 5%
1.1 Recognize the purpose and functions of various network devices such as routers, switches, bridges and hubs
1.2 Select the components required to meet a given network specification
1.3 Identify common applications and their impact on the network
1.4 Describe the purpose and basic operation of the protocols in the OSI and TCP/IP models
1.5 Predict the data flow between two hosts across a network
1.6 Identify the appropriate media, cables, ports, and connectors to connect Cisco network devices to other network devices and hosts in a LAN

2.0 LAN Switching Technologies 20%
2.1 Determine the technology and media access control method for Ethernet networks
2.2 Identify basic switching concepts and the operation of Cisco switches
2.2.a Collision Domains
2.2.b Broadcast Domains
2.2.c Ways to switch
2.2.c [i] Store
2.2.c [ii] Forward
2.2.c [iii] Cut through
2.2.d CAM Table
2.3 Configure and verify initial switch configuration including remote access management
2.3.a hostname
2.3.b mgmt IP address
2.3.c IP default-gateway
2.3.d local user and password
2.3.e enable secret password
2.3.f console and VTY logins
2.3.g exec-timeout
2.3.h service password encryption
2.3.i copy run start
2.4 Verify network status and switch operation using basic utilities such as
2.4.a ping
2.4.b telnet
2.4.c SSH
2.5 Describe how VLANs create logically separate networks and the need for routing between them
2.5.a Explain network segmentation and basic traffic management concepts
2.6 Configure and verify VLANs
2.7 Configure and verify trunking on Cisco switches
2.7.a dtp (topic)
2.7.b auto-negotiation
2.8 Identify enhanced switching technologies
2.8.a RSTP
2.8.b PVSTP
2.8.c Etherchannels
2.9 Configure and verify PVSTP operation
2.9.a Describe root bridge election
2.9.b Spanning tree mode

3.0 IP Addressing (IPv4/IPv6) 5%
3.1 Describe the operation and necessity of using private and public IP addresses for IPv4 addressing
3.2 Identify the appropriate IPv6 addressing scheme to satisfy addressing requirements in a LAN/WAN environment
3.3 Identify the appropriate IPv4 addressing scheme using VLSM and summarization to satisfy addressing requirements in a LAN/WAN environment.
3.4 Describe the technological requirements for running IPv6 in conjunction with IPv4
3.4.a dual stack
3.5 Describe IPv6 addresses
3.5.a global unicast
3.5.b multicast
3.5.c link local
3.5.d unique local
3.5.e eui 64
3.5.f auto-configuration

4.0 IP Routing Technologies 20%
4.1 Describe basic routing concepts
4.1.a packet forwarding
4.1.b router lookup process
4.1.c Process Switching/Fast Switching/CEF
4.2 Configure and verify utilizing the CLI to set basic Router configuration
4.2.a hostname
4.2.b local user and password
4.2.c enable secret password
4.2.d console and VTY logins
4.2.e exec-timeout
4.2.f service password encryption
4.2.g Interface IP Address
4.2.g [i] loopback
4.2.h banner
4.2.i motd
4.2.j copy run start
4.3 Configure and verify operation status of a device interface
4.3.a Serial
4.3.b Ethernet
4.4 Verify router configuration and network connectivity using
4.4.a ping
4.4.a [i] extended
4.4.b traceroute
4.4.c telnet
4.4.d SSH
4.4.e sh cdp neighbors
4.5 Configure and verify routing configuration for a static or default route given specific routing requirements
4.6 Differentiate methods of routing and routing protocols
4.6.a Static versus Dynamic
4.6.b Link state versus Distance Vector
4.6.c next hop
4.6.d ip routing table
4.6.e Passive Interfaces (how they work)
4.6.f Admin Distance
4.6.g split horizon
4.6.h metric
4.7 Configure and verify OSPF
4.7.a Benefit of single area
4.7.b Configure OSPv2
4.7.c Configure OSPv3
4.7.d Router ID
4.7.e Passive Interface
4.7.f Discuss multi-area OSPF
4.7.g Understand LSA types and purpose
4.8 Configure and verify interVLAN routing (Router on a stick)
4.8.a sub interfaces
4.8.b upstream routing
4.8.c encapsulation
4.9 Configure SVI interfaces
4.10 Manage Cisco IOS Files
4.10.a Boot Preferences
4.10.b Cisco IOS Images (15)
4.10.c Licensing
4.10.c [i] Show license
4.10.c [ii] Change license
4.11 Configure and verify EIGRP (single AS)
4.11.a Feasible Distance/Feasible Successors/Administrative distance
4.11.b Feasibility condition
4.11.c Metric composition
4.11.d Router ID
4.11.e auto summary
4.11.f Path Selection
4.11.g Load Balancing
4.11.g [i] Unequal
4.11.g [ii] Equal

5.0 IP Services 10%
5.1 Configure and verify DHCP (IOS Router)
5.1.a Configuring router interfaces to use DHCP
5.1.b DHCP options (basic overview and functionality)
5.1.c Excluded addresses
5.1.d Lease time
5.2 Describe the types, features, and applications of ACLs
5.2.a standard (editing and sequence numbers)
5.2.b extended
5.2.c named
5.2.d numbered
5.2.e Log option
5.3 Configure and verify ACLs in a network environment
5.3.a named
5.3.b numbered
5.3.c Log option
5.4 Identify the basic operation of NAT
5.4.a purpose
5.4.b pool
5.4.c static
5.4.d 1 to 1
5.4.e overloading
5.4.f source addressing
5.4.g one way NAT
5.5 Configure and verify NAT for given network requirements
5.6 Configure and verify NTP as a client.
5.7 Recognize High availability (FHRP)
5.7.a VRRP
5.7.b HSRP
5.7.c GLBP
5.8 Configure and verify syslog
5.8.a Utilize Syslog Output
5.9 Describe SNMP v2 and v3

6.0 Network Device Security 10%
6.1 Configure and verify network device security features
6.1.a Device password security
6.1.b enable secret versus enable
6.1.c Transport
6.1.c.1 disable telnet
6.1.c.2 SSH
6.1.d VTYs
6.1.e physical security
6.1.f service password
6.1.g Describe external authentication methods
6.2 Configure and verify Switch Port Security
6.2.a Sticky mac
6.2.b MAC address limitation
6.2.c static/dynamic
6.2.d violation modes
6.2.d [i] err disable
6.2.d [ii] shutdown
6.2.d [iii] protect restrict
6.2.e shutdown unused ports
6.2.f err disable recovery
6.2.g assign unused ports in unused VLANs
6.2.h putting Native VLAN to other than VLAN 1
6.3 Configure and verify ACLs to filter network traffic
6.4 Configure and verify ACLs to limit telnet and SSH access to the router

7.0 Troubleshooting 20%
7.1 Troubleshoot and correct common problems associated with IP addressing and host configurations
7.2 Troubleshoot and resolve VLAN problems
7.2.a Identify that VLANs are configured
7.2.b Verify port membership correct
7.2.c Correct IP address configured
7.3 Troubleshoot and resolve trunking problems on Cisco switches
7.3.a Verify correct trunk states
7.3.b Verify correct encapsulation configured
7.3.c Correct VLANs allowed
7.4 Troubleshoot and resolve ACL issues
7.4.a Verify statistics
7.4.b Verify permitted networks
7.4.c Verify direction
7.4.c [i] Interface
7.5 Troubleshoot and resolve Layer 1 problems
7.5.a Framing
7.5.b CRC
7.5.c Runts
7.5.d Giants
7.5.e Dropped packets
7.5.f Late collisions
7.5.g Input/output errors
7.6 Identify and correct common network problems
7.7 Troubleshoot and resolve spanning tree operation issues
7.7.a Verify root switch
7.7.b Verify priority
7.7.c Verify mode is correct
7.7.d Verify port states
7.8 Troubleshoot and resolve routing issues
7.8.a Verify routing is enabled (sh IP protocols)
7.8.b Verify routing table is correct
7.8.c Verify correct path selection
7.9 Troubleshoot and resolve OSPF problems
7.9.a Verify neighbor adjacencies
7.9.b Verify Hello and Dead timers
7.9.c Verify OSPF area
7.9.d Verify interface MTU
7.9.e Verify network types
7.9.f Verify neighbor states
7.9.g Review OSPF topology table
7.10 Troubleshoot and resolve EIGRP problems
7.10.a Verify neighbor adjacencies
7.10.b Verify AS number
7.10.c Verify load balancing
7.10.d Split horizon
7.11 Troubleshoot and resolve interVLAN routing problems
7.11.a Verify connectivity
7.11.b Verify encapsulation
7.11.c Verify subnet
7.11.d Verify native VLAN
7.11.e Port mode trunk status
7.12 Troubleshoot and resolve WAN implementation issues
7.12.a Serial interfaces
7.12.b Frame relay
7.12.c PPP
7.13 Monitor NetFlow statistics
7.14 TS EtherChannel problems

8.0 WAN Technologies 10%
8.1 Identify different WAN technologies
8.1.a Metro ethernet
8.1.b VSAT
8.1.c Cellular 3g/4g
8.1.d MPLS
8.1.e T1/E1
8.1.f ISDN
8.1.g DSL
8.1.h Frame relay
8.1.i Cable
8.1.j VPN
8.2 Configure and verify a basic WAN serial connection
8.3 Configure and verify a PPP connection between Cisco routers
8.4 Configure and verify Frame Relay on Cisco routers
8.5 Implement and troubleshoot PPPoE

200-120 CCNA Exam Q&A


QUESTION 1
Refer to the exhibit:



What will Router1 do when it receives the data frame shown? (Choose three.)

A. Router1 will strip off the source MAC address and replace it with the MAC address
0000.0c36.6965.
B. Router1 will strip off the source IP address and replace it with the IP address 192.168.40.1.
C. Router1 will strip off the destination MAC address and replace it with the MAC address
0000.0c07.4320.
D. Router1 will strip off the destination IP address and replace it with the IP address of
192.168.40.1.
E. Router1 will forward the data packet out interface FastEthernet0/1.
F. Router1 will forward the data packet out interface FastEthernet0/2.

Answer: A,C,F

Explanation:
Remember, the source and destination MAC changes as each router hop along with the TTL
being decremented but the source and destination IP address remain the same from source to
destination.


QUESTION 2
Refer to the exhibit.



Which three statements correctly describe Network Device A? (Choose three.)

A. With a network wide mask of 255.255.255.128, each interface does not require an IP address.
B. With a network wide mask of 255.255.255.128, each interface does require an IP address on a
unique IP subnet.
C. With a network wide mask of 255.255.255.0, must be a Layer 2 device for the PCs to
communicate with each other.
D. With a network wide mask of 255.255.255.0, must be a Layer 3 device for the PCs to
communicate with each other.
E. With a network wide mask of 255.255.254.0, each interface does not require an IP address.

Answer: B,D,E

Explanation:
If Subnet Mask is 255.255.255.128 the hosts vary from x.x.x.0 - x.x.x.127 & x.x.x.128- x.x.x.255,so
the IP Addresses of 2 hosts fall in different subnets so each interface needs an IP an address so
that they can communicate each other.
If Subnet Mask is 255.255.255.0 the 2 specified hosts fall in different subnets so they need a
Layer 3 device to communicate.
If Subnet Mask is 255.255.254.0 the 2 specified hosts are in same subnet so are in network
address and can be accommodated in same Layer 2 domain and can communicate with each
other directly using the Layer 2 address.


QUESTION 3
Which layer in the OSI reference model is responsible for determining the availability of the
receiving program and checking to see if enough resources exist for that communication?

A. transport
B. network
C. presentation
D. session
E. application

Answer: E

Explanation:
This question is to examine the OSI reference model.
The Application layer is responsible for identifying and establishing the availability of the intended
communication partner and determining whether sufficient resources for the intended
communication exist.


QUESTION 4
Which of the following describes the roles of devices in a WAN? (Choose three.)

A. A CSU/DSU terminates a digital local loop.
B. A modem terminates a digital local loop.
C. A CSU/DSU terminates an analog local loop.
D. A modem terminates an analog local loop.
E. A router is commonly considered a DTE device.
F. A router is commonly considered a DCE device.

Answer: A,D,E

Explanation:
The idea behind a WAN is to be able to connect two DTE networks together through a DCE
network. The network’s DCE device (includes CSU/DSU) provides clocking to the DTE-connected
interface (the router’s serial interface).



A modem modulates outgoing digital signals from a computer or other digital device to analog
signals for a conventional copper twisted pair telephone line and demodulates the incoming
analog signal and converts it to a digital signal for the digital device. A CSU/DSU is used between
two digital lines -
For more explanation of answer D, in telephony the local loop (also referred to as a subscriber
line) is the physical link or circuit that connects from the demarcation point of the customer
premises to the edge of the carrier or telecommunications service provider’s network. Therefore a
modem terminates an analog local loop is correct.





QUESTION 5
Refer to the exhibit.



Host A pings interface S0/0 on router 3. What is the TTL value for that ping?

A. 252
B. 253
C. 254
D. 255

Answer: B

Explanation:
From the CCNA ICND2 Exam book: “Routers decrement the TTL by 1 every time they forward a
packet; if a router decrements the TTL to 0, it throws away the packet. This prevents packets from
rotating forever.” I want to make it clear that before the router forwards a packet, the TTL is still
remain the same. For example in the topology above, pings to S0/1 and S0/0 of Router 2 have the
same TTL.
The picture below shows TTL values for each interface of each router and for Host B. Notice that
Host A initializes ICMP packet with a TTL of 255:





QUESTION 6
A network administrator is verifying the configuration of a newly installed host by establishing an
FTP connection to a remote server. What is the highest layer of the protocol stack that the network
administrator is using for this operation?

A. application
B. presentation
C. session
D. transport
E. internet
F. data link

Answer: A

Explanation:
FTP belongs to Application layer and it is also the highest layer of the OSI model.


QUESTION 7
Refer to the exhibit.



After HostA pings HostB, which entry will be in the ARP cache of HostA to support this
transmission?



A. Exhibit A
B. Exhibit B
C. Exhibit C
D. Exhibit D
E. Exhibit E
F. Exhibit F

Answer: D

Explanation:
When a host needs to reach a device on another subnet, the ARP cache entry will be that of the
Ethernet address of the local router (default gateway) for the physical MAC address. The
destination IP address will not change, and will be that of the remote host (HostB).


QUESTION 8
A network interface port has collision detection and carrier sensing enabled on a shared twisted
pair network. From this statement, what is known about the network interface port?

A. This is a 10 Mb/s switch port.
B. This is a 100 Mb/s switch port.
C. This is an Ethernet port operating at half duplex.
D. This is an Ethernet port operating at full duplex.
E. This is a port on a network interface card in a PC.

Answer: C

Explanation:
Modern Ethernet networks built with switches and full-duplex connections no longer utilize
CSMA/CD. CSMA/CD is only used in obsolete shared media Ethernet (which uses repeater or
hub).


QUESTION 9
A receiving host computes the checksum on a frame and determines that the frame is damaged.
The frame is then discarded. At which OSI layer did this happen?

A. session
B. transport
C. network
D. data link
E. physical

Answer: D

Explanation:
The Data Link layer provides the physical transmission of the data and handles error notification,
network topology, and flow control. The Data Link layer formats the message into pieces, each
called a data frame, and adds a customized header containing the hardware destination and
source address. Protocols Data Unit (PDU) on Datalink layer is called frame. According to this
question the frame is damaged and discarded which will happen at the Data Link layer.


QUESTION 10
Which of the following correctly describe steps in the OSI data encapsulation process? (Choose two.)

A. The transport layer divides a data stream into segments and may add reliability and flow control information.
B. The data link layer adds physical source and destination addresses and an FCS to the segment.
C. Packets are created when the network layer encapsulates a frame with source and destination host addresses and protocol-related control information.
D. Packets are created when the network layer adds Layer 3 addresses and control information to a segment.
E. The presentation layer translates bits into voltages for transmission across the physical link.

Answer: A,C

Explanation:
The Application Layer (Layer 7) refers to communications services to applications and is the
interface between the network and the application. Examples include. Telnet, HTTP, FTP, Internet
browsers, NFS, SMTP gateways, SNMP, X.400 mail, and FTAM.
The Presentation Layer (Layer 6) defining data formats, such as ASCII text, EBCDIC text, binary,
BCD, and JPEG. Encryption also is defined as a presentation layer service. Examples include.
JPEG, ASCII, EBCDIC, TIFF, GIF, PICT, encryption, MPEG, and MIDI.
The Session Layer (Layer 5) defines how to start, control, and end communication sessions. This
includes the control and management of multiple bidirectional messages so that the application
can be notified if only some of a series of messages are completed. This allows the presentation
layer to have a seamless view of an incoming stream of data. The presentation layer can be
presented with data if all flows occur in some cases. Examples include. RPC, SQL, NFS, NetBios
names, AppleTalk ASP, and DECnet SCP
The Transport Layer (Layer 4) defines several functions, including the choice of protocols. The
most important Layer 4 functions are error recovery and flow control. The transport layer may
provide for retransmission, i.e., error recovery, and may use flow control to prevent unnecessary
congestion by attempting to send data at a rate that the network can accommodate, or it might not,
depending on the choice of protocols. Multiplexing of incoming data for different flows to
applications on the same host is also performed. Reordering of the incoming data stream when
packets arrive out of order is included. Examples include. TCP, UDP, and SPX.
The Network Layer (Layer 3) defines end-to-end delivery of packets and defines logical
addressing to accomplish this. It also defines how routing works and how routes are learned; and
how to fragment a packet into smaller packets to accommodate media with smaller maximum
transmission unit sizes. Examples include. IP, IPX, AppleTalk DDP, and ICMP. Both IP and IPX
define logical addressing, routing, the learning of routing information, and end-to-end delivery
rules. The IP and IPX protocols most closely match the OSI network layer (Layer 3) and are called
Layer 3 protocols because their functions most closely match OSI's Layer 3.
The Data Link Layer (Layer 2) is concerned with getting data across one particular link or medium.
The data link protocols define delivery across an individual link. These protocols are necessarily
concerned with the type of media in use. Examples includE. IEEE 802.3/802.2, HDLC, Frame
Relay, PPP, FDDI, ATM, and IEEE 802.5/802.2.

Monday, 16 February 2015

648-375 Cisco Express Foundation for Systems Engineers - CXFS Exam


QUESTION 1
Which two capabilities dons Cisco SecureX give organizations for their BYOD solutions? (Choose
two.)

A. integration with unified policy
B. limited endpoint device choice
C. efficient security policy with disabled cloud-based services
D. persistent security tor traditional PCs and for mobile devices
E. use of wired and wireless access but not VPN access

Answer: A,D

Explanation: Link :
http://www.cisco.com/en/US/prod/collateral/vpndevc/ps5712/ps11637/ps11195/qa_c67-
703415_ns1167_Networking_Solutions_Q_and_A.html


QUESTION 2
Which three of the following protocols are firs-hop redundancy protocols? (Choose three.)

A. HSRP
B. VRRP
C. GSRP
D. GLBP

Answer: A,B,D

Explanation: Link : http://en.wikipedia.org/wiki/First_Hop_Redundancy_Protocols


QUESTION 3
Which of the following statements correctly describes the Cisco WAAS portfolio?

A. Cisco WAAS is available as WAAS Mobile, WAAS Express, WAAS ISR modules, WAAS
appliances, and vWAAS.
B. Cisco WAAS is available as WAAS Mobile, WAAS Express, WAAS ISR modules, WAAS on
SRE for ISR G2, WAAS appliances, vWAAS, and WAAS PC.
C. Cisco WAAS is available as WAAS Mobile, WAAS Express, WAAS ISR modules, WAAS on
SRE for ISR G2, WAAS appliances, vWAAS, WAAS PC, and WAAS Server
D. Cisco WAAS is available as WAAS Mobile, WAAS Express, WAAS ISR modules, WAAS on
SRE for ISR G2, WAAS appliances, and vWAAS.
E. Cisco WAAS is available as WAAS Express, WAAS ISR modules, WAAS on SRE for ISR G2,
WAAS appliances, vWAAS, and vWAAS.

Answer: D

Explanation:
http://www.cisco.com/en/US/prod/collateral/modules/ps2797/ps9750/data_sheet_c78-605215.html


QUESTION 4
Which two of the following unique advantages of the PD/PSE Cisco Catalyst Compact Switches?
(Choose two.)

A. They support 16 PoE output ports.
B. They support PoE+ output.
C. Due to the fanless design, they can be placed in the workplace and drastically reduce in-house
cabling needs.
D. They diminish the power infrastructure by supporting PoE+ input and PoE output at the same
time.

Answer: C,D

Explanation:


QUESTION 5
Which three of items are components of the Cisco f time Infrastructure? (Choose three.)

A. Cisco Prime time Security Manager
B. Cisco Prime Network Control System
C. Cisco Prime WAN Management Solution
D. Cisco Prime LAN Management Solution
E. Cisco Prime Assurance Manager
F. Cisco Prime Network Analysis Module

Answer: B,D,E

Explanation: Link : http://www.cisco.com/en/US/products/ps12239/index.html




Thursday, 4 December 2014

8 free online courses to grow your tech skills


The cost of learning just got cheaper. CIO.com tracked down these eight free ways to grow your technology skill set.

Free Online Tech Courses
At one time, universities and colleges were institutes of higher learning for those who were passionate about acquiring knowledge. Today, education discussions tend to to center around how much individuals can make with their degree. Thanks to the Internet there are still places that offer open learning initiatives designed to help a new generation of technologists succeed.

If money was the only thing holding you back from learning more about technology, we've got good news for you. There are many places offering free online tech training that while may not be degree/certificate driven can still give you a leg up on the competition.

While many of the courses listed here offer either a certificate or credit for a fee, they also all are free for those who just want to learn about technology or add a new skill to their "toolbox."

Introduction to Linux
Have you always wanted to learn more about Linux but never had the extra cash to inveset. This course offered through edX might be just what you're looking for. The Linux Foundation partnered with edX to offer this free Introduction to the Linux that covers familiarity with the graphical interface and command line as well as a look at all the major Linux distributions. The course gives an over view of the day to day working environment of a Linux administrator and covers pertinent tools and skills.

The designers of the course estimate that a total of 40- 60 hours of study are required to accurately cover the material. Students have the option of auditing the course, at no cost. You get access to course materials, tests, assignments and activities. Those who audit and complete the course will receive a certificate of achievement, but for those wanting to add it as a bullet point on their resume there is a verified certificate available for a fee.

Google Analytics Academy
With the proliferation of the Web, online shopping and social media marketing, competition for organic search traffic has gone through the roof. Understanding your website's analytics can help you make better data-based decisions while at the same time improving the customer experience. Google knows this and would love for you to use its product, Google Analytics. So much so that they've created this online learning center that offers courses to help you better use the hidden data located within your site.

Building Mobile Experiences
Another MIT offering through edX, Building Mobile Experiences, looks at the foundation for building mobile experiences. Mobile app traffic accounted for 55 percent of Web usage, surpassing desktop to become the dominant percentage of internet traffic, illustrating the need for today's developer to become acquainted with the process, design and skills necessary to build the next "big thing."

Based on a poplar MIT class that's been taught since 2006, Building Mobile Experiences' primary focus explores the analysis of mobile user behavior and the implementation of those findings in the design process. The course length is 12 weeks and requires roughly 10-12 weeks of study per week. While there is some code writing required, the bulk of the course will be designing and evaluating what a "unique mobile experience" is.

Students can pay to receive a verified certificate of achievement or audit the course for free and receive and Honor Code Certificate.

Microsoft Virtual Academy
Microsoft Virtual Academy offers a host of courses on mainly -- you guessed it -- Microsoft products. They offer courses on everything from game to cloud to app development and many more. There is no cost to participate but you must use a Microsoft account and create an MVA profile. Once you're logged in you can take courses or attend live events as well as build a learning plan and track progress towards your goals.

Udacity
Udacity got its start when Stanford University starting offering free computer classes in 2011. In April 2014, it boasted more than 1.6 million users. Its free tech offerings include HTML , Python, Intro to Data Science and many more. In fact, Google recently partnered with Udacity to bring Android development to the masses. Individuals who access the courses for free get access to course materials, like instructor videos and project instructions.

Alison
Alison offers an array of free online technical courses covering everything from, building an online business, to C programming to several flavors of Adobe training. One of their more popular tech courses is, ABC IT - Computer Training Suite which teaches users the basics of computing.

Altogether the e-learning provider reports more than 3 million have used its solutions to get educated and they offer more than 600 courses. They have roughly 106 technology courses available in their Digital Literacy and Skills section.

Design and Development of Educational Technology
Massachusetts Institute of Technology offers a course entitled, Design and Development of Educational Technology via Edx, a service offering interactive online classes and MOOCs from some of the world's most distinguished universities. The course runs six week and requires 4-6 hours of study each week. The course itself covers the evolution of educational technologies and how it's being used en masse.

Enrollment for the most recent ended October 8th and the course will run for 6 weeks. It's unclear at this time whether it will run again before 2015.

Harvard's CS50 Computer Science
Harvard offers this introduction to computer science. Those who participate will get a foundation in basic coding and learn aspects of C programming, HTML, CSS, JavaScript and SQL. This is a great, free way for individuals who want to learn to code to get their wish. You can enroll for Harvard credit or earn a certificate of achievement for a fee. You can also audit the course for free. Those who audit the course and achieve a satisfactory level of work will receive an Honor Code certificate.

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Saturday, 12 July 2014

CCIE Collaboration Jobs in USA

Cisco is a name that is a renowned and acknowledged all around the world and a CCIE certified person enjoys the status of qualified professional even at international level. US is a great place where there are a lot of job opportunities in the world of information technology. Yet these jobs require a highly well-informed and accomplished person.

The world of information technology is advancing, more and more certifications and diplomas are being released by the IT giants and companies are looking for certified individuals. The Companies in the IT field would prefer hiring people who are certified and highly well-informed.

People who are CCIE Collaboration certified are in high demand all over the world especially in the US. Hence, as the days pass, certifications are becoming more and more necessary to find the appropriate job. The CCIE Voice certification was the previous version of the Collaboration certification. However, now it stands expired, and collaboration certification has taken its place.

Once you are CCIE certified you will have boundless job opportunities with great salary packages. After being Cisco certified your value increases and you become qualified for many job positions. Some of the jobs that are available in US for a CCIE collaboration certified individual are

Voice Technologies Administrator
Voice Technologies Engineer
Voice Technologies Manager

Many companies prefer the CCIE certification because of it recognition all over the world. It’s an expert level certification which validates that the candidate is competent and capable enough to perform the job tasks that are assigned to him such as implementing, troubleshooting, and configuring the Cisco Voice and unified solutions. Many of the Networking Professionals prefer getting the CCIE Collaboration certification as it’s in high demand and you can get good and highly paid jobs. Once you get a job your future ahead of you is secure and bright as well.

The salary for CCIE Collaboration Certified expert ranges from US$:90000 to 120,000 based on the level of expertise.

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Monday, 7 July 2014

Cisco CCNA Routing and Switching Jobs in USA 2014

Cisco is the leader in networking technologies and has introduced remarkable professional certifications to enhance competencies of the professionals. Cisco’s CCNA is one of its most popular certifications in networking technologies.

The professionals having attained the CCNA certification, are equipped with the requisite capabilities to handle the networking platforms while working with networking devices like switches, hubs and routers etc.
The information technology is advancing at very fast pace. Engineers and experts joining this field will be able to perform to the greater satisfaction of thier employers if they do have excelled their competence through the professionals certifications like Cisco CCNA.

Cisco’s CCNA is the certification which is equally popular among st the serving professionals and the employees. So it is very much important for the experts who are dealing with LAN and WAN typologies that they must pass the Cico certification course to avail their CCNA credential.
The IT professionals having passed the course for CCNA, would have better chances of getting good CCNA jobs in USA.

The professionals having achieved Cisco CCNA certification would be better placed to find CCNA Jobs in USA to start their professorial career as:-

• An expert in CCNA networking typologies
• An engineer in the senior networking systems of CCNA
• An IT manager in different fields
• An assistant for systems and networks
• An system engineer in different IT fields
• An engineer for voice frequencies
• An administrator of security systems

The above mentioned jobs are available in USA for IT professionals who have earned the CCNA certification. It is a known fact that the field of information technology is moving at very fast pace and it is the need of every IT professional to keep himself abreast about latest developments and innovations.
The professionals with CCNA certification, got better CCNA jobs in USA than the candidate shaving no such credentials. The average expected salary for the professional having CCNA certification would be around $95,000.

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Friday, 4 April 2014

646-003 Advanced Routing and Switching for Account Managers


QUESTION 1
Which of these options describes Cisco Stack Wise technology? (Select one.)

A. Cisco Stack Wise technology joins individual, stackable switches to create a single functional
switch.
B. Cisco Stack Wise technology creates data stacks to prioritize converged network traffic.
C. Cisco Stack Wise technology joins modular switches together to provide switching redundancy.
D. Cisco Stack Wise technology groups routers and switches together in the wiring closet.

Answer: A


QUESTION 2
Which three security features distinguish the Cisco Security Suite from basic wireless security?
(Choose three.)

A. TKIP
B. SSIDs
C. static WEP keys
D. advanced security
E. IEEE authentication
F. MAC address authentication

Answer: A,D,E


QUESTION 3
Company ABC deployed several Cisco 7500 Series Routers as backbone routers, reliably
delivering business-critical network services. Today's networks need the higher levels of services
integration and performance found in newer and more robust Cisco platforms. The Cisco 7500
Series will be EOL'd. Which platform is the best choice for the customer if they want to improve
performance up to 30 mpps and increase the scalability and density of ports?

A. Cisco 6500 Series
B. Cisco 7200 Series
C. Cisco 7600 Series
D. Cisco 12000 Series

Answer: C