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Cisco CCNP SWITCH 642-813 Exam Questions with Explanation – Chapter 1 (66-70)

Published on June 11, 2012 by admin

Chapter 1 – Implement VLAN based solution, given a network design and a set of requirements

QUESTION NO: 66
Refer to the exhibit. The user who is connected to interface FastEthernet 0/1 is on VLAN 10 and cannot access network resources. On the basis of the information in the exhibit, which command sequence would correct the problem?
A. SW1(config)# vlan 10SW1(config-vlan)# no shut
B. SW1(config)# interface fastethernet 0/1SW1(config-if)# switchport mode accessSW1(config-if)# switchport access vlan 10
C. SW1(config)# interface fastethernet 0/1SW1(config-if)# switchport mode access
D. SW1(config)# vlan 10SW1(config-vlan)# state active
E. SW1(config)# interface fastethernet 0/1SW1(config-if)# no shut
Answer: E
Explanation:
In Exhibit Operation Mode is down, it means interface is in down state. Just bring into up state using no shutdown command

Cisco CCNP SWITCH 642-813 Exam Questions with Explanation – Chapter 1 (61-65)

Published on June 4, 2012 by admin

Chapter 1 – Implement VLAN based solution, given a network design and a set of requirements

QUESTION NO: 61
Which MST configuration statement is correct?
A. MST configurations can be propagated to other switches using VTP.
B. After MST is configured on a Switch, PVST+ operations will also be enabled by default.
C. MST configurations must be manually configured on each switch within the MST region.
D. MST configurations only need to be manually configured on the Root Bridge.
E. MST configurations are entered using the VLAN Database mode on Cisco Catalyst switches.
Answer: C
Explanation:
MST configuration must be manually be configured on each switch within the MST region.

Cisco CCNP SWITCH 642-813 Exam Questions with Explanation – Chapter 1 (56-60)

Published on May 29, 2012 by admin

Chapter 1 – Implement VLAN based solution, given a network design and a set of requirements

QUESTION NO: 56
Company uses MSTP within their switched LAN. What is the main purpose of Multiple Instance Spanning Tree Protocol (MSTP)?
A. To enhance Spanning Tree troubleshooting on multilayer switches
B. To reduce the total number of spanning tree instances necessary for a particular topology
C. To provide faster convergence when topology changes occur in a switched network
D. To provide protection for STP when a link is unidirectional and BPDUs are being sent but not received
E. None of the other alternatives apply
Answer: B
Explanation:
MST is built on the concept of mapping one or more VLANs to a single STP instance. Multiple instances of STP can be used (hence the name MST), with each instance supporting a different group of VLANs.
Each could be tuned to result in a different topology, so that Instance 1 would forward on the left uplink, while Instance 2 would forward on the right uplink. Therefore, VLAN A would be mapped to Instance 1,and VLAN B to Instance 2. To implement MST in a network, you need to determine the following:

isco CCNP SWITCH 642-813 Exam Questions with Explanation – Chapter 1 (51-55)

Published on May 19, 2012 by admin

Chapter 1 – Implement VLAN based solution, given a network design and a set of requirements

QUESTION NO: 51
ISL is being configured on a Company switch. Which of the following choices are true regarding the ISL protocol? (Select two)
A. It can be used between Cisco and non-Cisco switch devices.
B. It calculates a new CRC field on top of the existing CRC field.
C. It adds 4 bytes of protocol-specific information to the original Ethernet frame.
D. It adds 30 bytes of protocol-specific information to the original Ethernet frame.
Answer: B,D
Explanation:
ISL adds a total of 30bytes to the Ethernet frame. A 26 byte header (10bytes identifies the VLAN ID) and a 4 byte trailer (containing a separate CRC).

Cisco CCNP SWITCH 642-813 Exam Questions with Explanation – Chapter 1 (46-50)

Published on May 2, 2012August 26, 2013 by admin

Chapter 1 – Implement VLAN based solution, given a network design and a set of requirements

QUESTION NO: 46
Which of the following technologies would an Internet Service Provider use to support overlapping customer VLAN ID’s over transparent LAN services?
A. 802.1q tunneling
B. ATM
C. SDH
D. IP Over Optical Networking
E. ISL
Answer: A

Cisco CCNP SWITCH 642-813 Exam Questions with Explanation – Chapter 1 (41-45)

Published on April 24, 2012 by admin

Chapter 1 – Implement VLAN based solution, given a network design and a set of requirements

QUESTION NO: 41
While using a packet analyzer, you notice four additional bytes being added to the packets in the Company network. Which protocol inserts a four byte tag into the Ethernet frame and recalculates CRC value?
A. DTP
B. VTP
C. 802.1Q
D. ISL
E. None of the other alternatives apply
Answer: C

Cisco CCNP SWITCH 642-813 Exam Questions with Explanation – Chapter 1 (36-40)

Published on April 24, 2012August 26, 2013 by admin

Chapter 1 – Implement VLAN based solution, given a network design and a set of requirements

QUESTION NO: 36
The Company core switches use 802.1Q trunks to connect to each other. How does 802.1Q trunking keep track of multiple VLANs?
A. It tags the data frame with VLAN information and recalculates the CRC value
B. It encapsulates the data frame with a new header and frame check sequence
C. It modifies the port index of a data frame to indicate the VLAN
D. It adds a new header containing the VLAN ID to the data frame
E. None of the other alternatives apply
Answer: A