4A0-C01 Online Practice Questions and Answers

Which of the following OSPFv3 LSAs have an AS scope?

A. Link Local LSA

B. Router LSA

C. Network LSA

D. Inter-Area Router LSA

E. Intra-Area Prefix LSA

F. None of the above LSAs have an AS scope.

What is the primary purpose of classless interdomain routing (CIDR)?

A. To support classful routing protocols.

B. To allow IP routes to be defined using any number of bits for the network portion of the address.

C. To allow interdomain routing between an IGP and EGP such as OSPF and BGP.

D. To simplify the allocation of IP address space by defining a fixed size for the network portion of the address for each of the address classes.

An LSP path is configured as follows:

-Shared-explicit reservation style

-Make-before-break (MBB) enabled

-500Mpbs bandwidth reserved on a 1Gbps link

With 100Mbps of unreserved bandwidth remaining, the operator increases the LSP-path's bandwidth reservation to 900Mbps. What happens to the existing LSP?

A. CSPF looks for the delta bandwidth, taking down the first path if necessary.

B. CSPF looks for the delta bandwidth, implementing make-before-break.

C. After 5 failed attempts to find the bandwidth requested, the head end disables the LSP.

D. CSPF looks for the entire bandwidth requested, implementing MBB.

Which of the following statements regarding LSP path configuration are true? (Choose three)

A. The path must include at least one hop.

B. The path may be used multiple times in a single LSP.

C. The path may comprise loose hop entries only.

D. The path must define the LSP's tail end.

E. The path may be used for multiple LSPs.

Which of the following about LDP sessions is TRUE?

A. Frame mode requires multiple sessions between peers.

B. The lower transport address initiates the session.

C. Established LDP sessions run over a TCP connection.

D. An LDP session is established immediately after Init messages are exchanged between peers.

Which of the following regarding MPLS label value assignment is FALSE?

A. Label values may be dynamically assigned by LDP.

B. Label values may be dynamically assigned by RSVP-TE.

C. Label values may be reserved for special uses.

D. Label values may be dynamically assigned by IGP.

Which of the following LDP settings can be changed with CLI?

A. Label space mode

B. Label retention

C. Control mode

D. Keepalive factor

Choose the following components that are necessary for the configuration of a mirror service. (Choose 2)

A. A mirror destination to indicate which ports to monitor.

B. A mirror source to indicate which ports to monitor.

C. A mirror destination to indicate on which sap or sdp traffic should be replicated.

D. A mirror source to indicate on which sap or sdp traffic should be replicated

Router R2 learns the networks shown from IS-IS. Router R2 is configured to redistribute routes from IS-IS to OSPF as shown. How many OSPF Type 5 LSAs will router R1 receive from router R2? Assume the OSPF and IS-IS adjacencies are operational.

A. 0

B. 1

C. 2

D. 3

E. 4

This policy is applied as an LDP export policy. In addition to the FECs learned from its neighbors, which FECs will appear in this router's LIB?

A. All FECs with a prefix of 192.168.1.0/30.

B. Local FECs with a prefix of 192.168.1.0/30.

C. All FECs excluding 192.168.1.0/30.

D. Local FECs excluding 192.168.1.0/30.