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which protocol would you use?

If you needed to transport traffic coming from multiple VLANs (connected between switches),
and your CTO was insistent on using an open standard, which protocol would you use?

PrepAway - Latest Free Exam Questions & Answers

A.
802.11B

B.
spanning-tree

C.
802.1Q

D.
ISL

E.
VTP

F.
Q.921

Explanation:
The act involved in the above question is trunking. The two trunking protocols in the answer
choices are: 802.1Q and ISL. ISL is Cisco proprietary and IEEE 802.1Q is based on an open
standard. When non-Cisco switches are used along with Cisco switches and trunking is
required, it is best to use the 802.1Q encapsulation.
Incorrect Answers:
A: This standard is used in wireless networking and has nothing to do with VLAN switching.
B: The Spanning Tree Protocol (STP) is used to prevent loops within a bridged network.
Each VLAN runs a separate instance of the STP and this is enabled by default.
D: This is the alternative Cisco proprietary method of trunking.
E: VLAN Trunking Protocol (VTP) is a Layer 2 messaging protocol that manages the
addition, deletion, and renaming of VLANs on a network-wide basis. It is not used to actually
transport VLAN traffic.
F: This is an ISDN signaling standard and is not related with VLAN switching.

2 Comments on “which protocol would you use?

  1. Rola Hasaneya says:

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    QUESTION 399
    Which two commands sequences must you enter on a pair switches so that they negotiate? (Choose 2)

    A. channel-protocol lacp
    channel-group 1 mode auto
    B. channel-protocol lacp
    channel-group 1 mode passive
    C. channel-protocol pagp
    channel-group 1 mode on
    D. channel-protocol pagp
    channel-group 1 mode auto
    E. channel-protocol lacp
    channel-group 1 mode active

    Answer: BE

    QUESTION 400
    Which two prerequisites for HSRP to become active on an interface are true? (Choose 2)

    A. Cisco Express Forwarding must be disabled globally.
    B. The VIP must be in the same subnet as the primary IP address.
    C. A Virtual-MAC address must be configured on the interface.
    D. An IP address must be configured on the interface.
    E. PIM routing must be disabled on the interface.

    Answer: BD

    QUESTION 401
    Which two authentication types does VRRP support? (Choose Two)

    A. Plain-text
    B. CHAP
    C. PAP
    D. 802.1X
    E. MD5

    Answer: AE

    QUESTION 402
    Which two limitations of LOCAL SPAN are true? (Choose Two)

    A. The source and destination ports must reside in the same switch or switch stack
    B. It can monitor only traffic that ingresses or egresses on the source interface or VLAN.
    C. A SPAN session can support multiple destination ports only if they are on the same VLAN.
    D. EACH SPAN session supports only one source VLAN or interface.
    E. A switch can support only one local SPAN session at a time.

    Answer: AE

    QUESTION 403
    Which Statement about the default SWITCH Database Management Template is true?

    A. Template disables routing and supports the maximum number of unicast MAC addresses
    B. Template maximizes system resources for access control lists.
    C. Template maximizes system resources for unicast routing.
    D. Template gives balance to all functions

    Answer: D

    QUESTION 404
    Which results happens when a non-trunking port that is configured with BPDU guard is connected to a device that is transmitting?

    A. The port is moved into the spanning-tree blocking state.
    B. There port is error-disabled.
    C. A routing loop can occur on the network.
    D. The port transitions to the connected state.

    Answer: B

    QUESTION 405
    Which two settings are the parts of a Default LLDP configuration? (Choose Two)

    A. The LLDP hold time is 60 seconds.
    B. The LLDP global state is Disabled.
    C. The LLDP reinitialisation delay is 5 seconds.
    D. The LLDP interface state is Enabled.
    E. The LLDP timer is 60 seconds.

    Answer: BD

    QUESTION 407
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