[2021-New] Cisco 400-101 Dumps With Update Exam Questions (181-190)

400-101 Dumps

400-101 Exam Questions - Online Test

400-101 Premium VCE File

Learn More 100% Pass Guarantee - Dumps Verified - Instant Download
150 Lectures, 20 Hours

Q1. Refer to the exhibit.

Which AS paths are matched by this access list?

A. the origin AS 64496 only

B. the origin AS 64496 and any ASs after AS 64496

C. the directly attached AS 64496 and any ASs directly attached to AS 64496

D. the directly attached AS 64496 and any longer AS paths

Answer: C

Explanation:

If you want AS 1 to get networks originated from AS 4 and all directly attached ASs of AS 4, apply the following inbound filter on Router 1. ip as-path access-list 1 permit ^4_[0-9]*$ router bgp 1 neighbor 4.4.4.4 remote-as 4 neighbor 4.4.4.4 route-map foo in route-map foo permit 10 match as-path 1 In the ip as-path access-list command, the carat (^) starts the input string and designates "AS". The underscore (_) means there is a a null string in the string that follows "AS 4". The [0-9]* specifies that any connected AS with a valid AS number can pass the filter. The advantage of using the [0-9]* syntax is that it gives you the flexibility to add any number of ASs without modifying this command string.

Reference: http://www.cisco.com/c/en/us/support/docs/ip/border-gateway-protocol-bgp/13754-26.html

Q2. Which three features are common to OSPF and IS-IS? (Choose three.)

A. They both maintain a link-state database from which a Dijkstra-based SPF algorithm computes a shortest path tree.

B. They both use DR and BDR in the broadcast network.

C. They both use hello packets to form and maintain adjacencies.

D. They both use NSSA and stub type areas to scale the network design.

E. They both have areas to form a two-level hierarchical topology.

Answer: A,C,E

Q3. Which command sets the maximum segment size for a TCP packet initiated from a router?

A. ip mtu

B. ip tcp adjust-mss

C. ip tcp mss

D. ip tcp window-size

Answer: C

Q4. DRAG DROP

Drag each IPv6 extension header on the left to its corresponding description on the right.

Answer:

Q5. DRAG DROP

Drag and drop the Cisco IOX XE subpackage on the left to the function it performs on the right.

Answer:

Q6. Refer to the exhibit.

R2 is configured as the R1 neighbor in area 51, but R2 fails to receive the configured summary route. Which action can you take to correct the problem?

A. Replace the summary-address command with the area-range command.

B. Configure a summary address under R1interface GigabitEthernet0/0.

C. Configure a summary address under R1 interface GigabitEthernet1/0.

D. Configure the no discard-route command in the OSPF process of R1.

E. Configure ip ospf network broadcast under the Loopback0 interface of R1.

Answer: A

Q7. DRAG DROP

Drag and drop the LACP elements on the left into the correct priority order in the hot-standby port-selection process on the right.

Answer:

Q8. Which two statements about MPLS VPNs are true? (Choose two.)

A. PE routers maintain customer routes in the VPN for that customer.

B. They use the explicit-null label by default.

C. P routers are used only for label transit.

D. P routers maintain customer routes in the VPN for that customer.

E. They support only one route target.

F. Each interface on a PE router must have its own VRF.

Answer: A,C

Q9. Which two OSPF LSA types are flooded within the originating area? (Choose two.)

A. type 1, Router LSA

B. type 2, Network LSA

C. type 3, Network Summary LSA

D. type 4, ASBR Summary LSA

E. type 6, Group Membership LSA

F. type 9, Opaque LSA

Answer: A,B

Explanation:

OSPF relies on several types of Link State Advertisements (LSAs) to communicate link state information between neighbors. A brief review of the most applicable LSA types:

. Type 1 - Represents a router

. Type 2 - Represents the pseudonode (designated router) for a multiaccess link

. Type 3 - A network link summary (internal route)

. Type 4 - Represents an ASBR

. Type 5 - A route external to the OSPF domain

. Type 7 - Used in stub areas in place of a type 5 LSA LSA types 1 and 2 are found in all areas, and are never flooded outside of an area. They are only flooded within the area that they originated from.

Reference: http://packetlife.net/blog/2008/jun/24/ospf-area-types/

Q10. How is the MRU for a multilink bundle determined?

A. It is negotiated by LCP.

B. It is manually configured on the multilink bundle.

C. It is manually configured on all physical interfaces of a multilink bundle.

D. It is negotiated by NCP.

E. It is negotiated by IPCP.

Answer: A