cisco 400-101 online test

CCIE Routing and Switching Written

What students need to know about the 400-101 exam

  • Total 802 Questions & Answers

Question 1 Topic 1

DRAG DROP
Drag and drop each extended ping IP header option from the left onto the corresponding description on the right.

Select and Place:

Answer:


Explanation:
Loose, Strict, Record, Timestamp, Verbose[none]:
IP header options. This prompt offers more than one option to be selected. They are:
Verbose is automatically selected along with any other option.

Record is a very useful option because it displays the address(es) of the hops (up to nine) the packet goes through.

Loose allows you to influence the path by specifying the address(es)of the hop(s) you want the packet to go through.

Strict is used to specify the hop(s) that you want the packet to go through, but no other hop(s) are allowed to be visited.


Timestamp is used to measureroundtrip time to particular hosts.

Discussions

Question 2 Topic 1

What are IPv6 addresses of the form fc00::/7 known as?

  • A. link-local addresses
  • B. unique local addresses
  • C. multicast RP addresses
  • D. transition addresses for 6to4
Answer:

B

Discussions

Question 3 Topic 1

Which two factors contribute to traffic starvation when TCP and UDP flows are included in a single traffic class? (Choose
two.)

  • A. UDP flows maintain a consistent transmission rate when congestion occurs on a link
  • B. TCP flows continually lower their transmission rates when congestion occurs on a link
  • C. TCP flows maintain a consistent transmission rate when congestion occurs on a link
  • D. UDP flows continually reduce the window size when congestion occurs on a link
  • E. TCP flows continually reduce the window size when congestion occurs on a link
  • F. UDP flows continually lower their transmission rates when congestion is detected
Answer:

AB

Discussions

Question 4 Topic 1

Which two Cisco Express Forwarding tables are located in the data plane? (Choose two.)

  • A. the IP routing table
  • B. the label forwarding information base
  • C. the label information table
  • D. the adjacency table
  • E. the forwarding information base
Answer:

DE

Discussions

Question 5 Topic 1

Which regular expression will match prefixes from the AS 200 that is directly connected to our AS?

  • A. ^$
  • B. ^200)
  • C. _200$
  • D. _200_
  • E. ^200_
Answer:

E

Discussions

Question 6 Topic 1

Which two statements about asymmetric routing are true? (Choose two)

  • A. It can cause packet loss over stateful ICMP and UDP connections.
  • B. It can cause packet loss when a stateful firewall is in use.
  • C. It can cause TCP connections to close.
  • D. It can cause packet loss when NAT is in use.
  • E. It is uncommon in large networks.
Answer:

BD

Discussions

Question 7 Topic 1

R1 #show debug
Condition 1: interface Fa0/0 (1 flags triggered)
Flags: Fa0/0
Condition 2: lp 192.168.12.1 (0 flags triggered)
Condition 3: username cisco (0 flags triggered)
Refer to the exhibit. If R1 generated this response to the show debug command, which statement about its debug output is
true?

  • A. When debug output is generated, only the user cisco is permitted to view it.
  • B. As soon as interface Fa0/0 becomes active, it generates debug output because one condition has been met
  • C. R1 generates debug output as soon as IP address 192.168.0.0 is applied to interface Fa0/0
  • D. R1 generates debug output as soon as all three conditions are met
Answer:

B

Explanation:
If you enter multiple debug condition commands, debugging output will be generated if an interface meets at least one of the
conditions

Discussions

Question 8 Topic 1

Which neighbor-discovery message type is used to verify connectivity to a neighbor when the link-layer address of the
neighbor is known?

  • A. neighbor advertisement
  • B. router advertisement
  • C. router solicitation
  • D. neighbor solicitation
Answer:

D

Discussions

Question 9 Topic 1


Which two IP packet types always traverse to the route processor CPU? (Choose two.)

  • A. management-plane packets
  • B. services-plane packets
  • C. forwarding-plane packets
  • D. control-plane packets
  • E. data-plane packets
Answer:

AD

Discussions

Question 10 Topic 1

Which IPv6 solution provides network information to clients without providing an IPv6 host address?

  • A. stateful DHCPv6
  • B. stateless DHCPv6
  • C. prefix delegation
  • D. autoconfiguration
Answer:

C

Discussions
To page 2