4A0-C04 Practice Exam Questions and Answers

A.  

The TC field is set based on the value of the DSCP field inside the customer packet.

B.  

The TC field is set to a specific value via explicit administrative configuration.

C.  

The TC field is set to a system generated random number.

D.  

The TC field is set by the eLER.

A.  

The router with the lowest priority is the DR.

B.  

The router with the highest priority is the DR.

C.  

If priorities are the same, the DR is chosen based on the lowest RI

D.  

D.  

If priorities are the same, the DR is chosen based on the highest RI

D.  

A.  

The term backbone router has the same definition as the term area border router.

B.  

An OSPF network needs at least one area border router to function.

C.  

Area border routers connect the backbone area to other areas in an OSPF network.

D.  

By definition, an area border router must perform route summarization between areas.

A.  

They are multicast to the All Hosts address.

B.  

They are broadcast to the subnet broadcast address.

C.  

They are multicast to the All Routers address.

D.  

They are broadcast or multicast, depending on the physical media.

A.  

The inner label is the IPv4 Explicit Null. The outer label is the MPLS transport label,

B.  

The inner label is an MPLS transport label. The outer label is the IPv4 Explicit Null.

C.  

The inner label is the IPv6 Explicit Null. The outer label is an MPLS transport label.

D.  

The inner label is an MPLS transport label. The outer label is the IPv6 Explicit Null.

A.  

The router must receive an acknowledgment

B.  

The router must receive a Hello

C.  

The router must receive a new sequence number

D.  

The router must receive a Link State Packet

A.  

RIPv2 supports basic and MD5 authentication only.

B.  

RIPv2 supports password and MD5 authentication only.

C.  

RIPv2 does not support authentication, password and MD5 authentication.

D.  

RIPv2 does not support authentication.

A.  

When a Link State Update is received in response to a Link State Request

B.  

When a router receives a Hello packet from a neighbor that contains its router id in the neighbor list

C.  

When OSPF neighbors exchange Database Descriptor packets

D.  

When a Link State Acknowledgement is received in response to a Link State Update

A.  

Option A

B.  

Option B

C.  

Option C

D.  

Option D

A.  

OSPF

B.  

RIP

C.  

BGP

D.  

IS-IS