4A0-100 Online Practice Questions and Answers

What kind of information can a Dynamic Host Configuration Protocol (DHCP) client receive?

A. Details of the configuration settings of each router on the network.

B. A list of other DHCP clients.

C. IP addresses and their lease times.

D. Server time information

The IANA is responsible for:

A. Intra-city ISP traffic

B. Allocation of the global IP address space

C. Allocating IP addresses for residential customer traffic

D. Allocating North American IP addresses

What protocol is used by ping to verify IP network reachability?

A. DCHP

B. ICMP

C. ARP

D. NAT

Which of the following are accurate statements about the PE device in a service providers MPLS network? (Select three)

A. A PE router only connects to CE devices.

B. A PE router only connects to P routers.

C. A PE router connects to at least one P router.

D. A PE router connects to at least one CE device.

E. PE routers support many different interface types connecting to CE devices.

F. PE routers only support Ethernet interfaces connecting to the CE.

SAPs may be a port, a port with a specific VLAN tag in the case of an Ethernet port, or a port with a specific Circuit ID in the case of ATM or Frame Relay.

A. True

B. False

In regards to the Nokia 7750 SR-12 router, how many of the front access card slots are dedicated for Control Processors?

A. 1

B. 2

C. 7

D. 10

Router R3 receives an LSA with the sequence number 111 from router R4 and then receives another copy of the LSA with a sequence number 112 from router R2. What does router R3 do with the LSA from R2?

A. R3 discards the LSA received from R2 and sends a copy of the LSA from its link state base to R2.

B. R3 installs the LSA received from R2 in its link state database and floods a copy to its neighbors.

C. R3 discards the LSA received from R2 and sends an ACK to R2.

D. R3 installs the LSA received from R2 in its link state database, sends an ACK to R2, and floods a copy to its neighbors.

Which of the following routing protocols SHOULD NOT be used between routers R1 and R2?

A. Static Routing

B. Default Routing

C. OSPF

D. BGP

Which of the following is TRUE regarding routers R2 and R3 in the pictured MPLS network?

A. Router R2 pushes labels for LSP A, and R3 swaps labels for LSP A.

B. Router R2 swaps labels for LSP A, and R3 pops labels for LSP A.

C. Router R2 and R3 swap labels for LSP A and LSP B.

D. Router R2 and R3 push labels for LSP A and LSP B, respectively.

Which bit pattern represents a subnet mask of 255.255.240.0?

A. 11111111.11111111.11111111.00000000

B. 11111111.11111111.11110000.00000000

C. 11111111.11111111.11000000.00000000

D. 11111111.11111111.00000000.00000000