4A0-C04 Online Practice Questions and Answers

A static route is created using the command "static-route 2.3.4.0/24 next-hop 1.2.3.4". What is the correct traceroute command to test this static route on an Nokia 7750 SR?

A. traceroute 2.3.4.1

B. traceroute 2.3.4.0/24 next-hop 1.2.3.4

C. traceroute next-hop 1.2.3.4

D. traceroute does not work on the Nokia 7750 SR

Click the exhibit.

AS 65100 is advertising 192.168.1.0/27 into BGP. Which of the following AS Paths would the prefix 192.168.1.0/27 contain when viewed on router R8?

A. 65200 (65206 65202) 65100

B. (65206 65202)65100

C. 65250 (65206 65202) 65100

D. 65200 65100

Click the exhibit.

Routers RR1 and RR2 are route reflectors with the same Cluster-ID. How does router RA treat the updates for prefix 192.168.1.0/27 received from routers RR1 and RR2?

A. Router RA prefers the update received from router RR1.

B. Router RA prefers the update received from router RR2.

C. Router RA flags both updates as invalid.

D. Router RA accepts both updates and flags them as used.

An IS-IS TE enabled router has an interface on a 500Mbps link and it is configured with a 25% subscription. If this interface is not used by any LSPs. What value will be shown in the Reservable Bandwidth sub-TLV?

A. 125 Mbps

B. 500 Mbps

C. 625 Mbps

D. 2000 Mbps

An autonomous system has 7 routers configured with BGP. How many iBGP sessions are required for a fully meshed configuration?

A. 7

B. 13

C. 21 D. 42

Which one of the commands below will create a static route to network 2.3.4.0/24 on the AlcatelLucent 7750 SR router?

A. Static route 2.3.4.0 255.255.255.0 next hop 3.4.5.6

B. Static-route next-hop 3.4.5.6 2.3.4.0/24

C. Static route 2.3.4.0/24 next hop 3.4.5.6

D. Static-route 2.3.4.0/24 next-hop 3.4.5.6

Which of the following about VPLS MAC learning is FALSE?

A. The PE routers of the service are responsible for learning MAC addresses.

B. Flooding ensures that all PEs in a fully-meshed VPLS will learn the source address of all traffic.

C. MAC learning reduces flooding of frames with previously learned addresses.

D. Multiple VPLSes on the same PE share the same MAC FDB.

Refer to the exhibit.

Assume that OSPFv3 is properly configured on all routers and that R4 advertises its system prefix into Area 0. Which of the following statements best describes how R5 learns R4's IPv6 system prefix?

A. With a Router LSA originated by R1

B. With a Router LSA originated by R5

C. With a Router LSA originated by R4

D. With an Inter-Area Prefix LSA originated by R1

E. With an Inter-Area Prefix LSA originated by R5

F. With an Inter-Area Prefix LSA originated by R4

Which of the following statements is TRUE?

A. An OSPF adjacency can be established on an IES interface.

B. IES allows provider MP-BGP sessions to be extended to customers.

C. An IES service must use static routes in order to communicate with customer networks.

D. An IES interface supports OSPF and IS-IS in passive mode only.

In an OSPF Hello packet what fields must match all neighbor routers on the segment? (Choose 3) A. Area ID

B. Hello and Dead Intervals

C. Stub flag

D. DR and BDR addresses

E. The list of neighbors