cisco 400-101 practice test

Question 1

Refer to the exhibit.

If a Layer 3 switch running OSPF in a VRF- lite configuration reports this error, which action can you
take to correct the problem?

• A. Set mls cef maximum-routes in the global configuration
• B. Add the vrf-lite capability to the OSPF configuration.
• C. Upgrade the Layer 3 switch to a model that can support more routes.
• D. Configure the control plane with a larger memory allocation to support the Cisco Express Forwarding Information Base.

Question 2

Which two statements about 802.10 tunneling are true? (Choose two.)

• A. It requires a system MTU of at least 1504 bytes.
• B. The default configuration sends Cisco Discovery Protocol, STP: and VTP information.
• C. Traffic that traverses the tunnel is encrypted.
• D. It is supported on private VLAN ports.
• E. MAC-based QoS and UDLD are supported on tunnel ports.
• F. Its maximum allowable system MTU is 1546 bytes.

Question 3

Refer to the exhibit.

When entering a question mark after bgp bestpath only three options are visible. Which two options
are valid BGP hidden options for the bgp bestpath command? (Choose two.)

• A. bgp bestpath as-path multipath relax
• B. bgp bestpath as-path ignore
• C. bgp bestpath compare-all
• D. bgp bestpalh localpref Ignore

Question 4

Which protocol allows connections made by an NBMA network to dynamically learn connected
address?
A.PPP
B. NHRP
C. HDLC
D. POP

Question 5

Refer to the exhibit.

If R1 contacts the RADIUS server but It unable to find the user name in the server database, how will
R1 respond?

• A. It will prompt the user to enter a new usename.
• B. It will attempt to contact the TACACS+ server.
• C. It will deny the user access.
• D. It will attempt to authenticate the user against the local database.

Question 6

When you deploy DMVPN, what is the purpose of the command crypto is a kmp key ciscotest
address 0.0.0.0 0.0.0.0?

• A. It is configured on hub and spoke router to establish peering
• B. It is configured on hub to set the pre-shared key for the spoke routers
• C. It is configured on the spokes to indicate the hub router
• D. It is configured on the Internet PE routers to allow traffic to traverse the ISP core

Question 7

Refer to the exhibit.

All routers are running EIGRP and the network has converged. R3 and R4 are configured as EIGRP
Stub. if the link between R1 and R3 goes down, which statement is true?

• A. R1 sends traffic destined to 192.168.0.100 via R2
• B. R2 does not have a router to 192.168.0.0/24 in the routing table.
• C. The prefix 192.168.0.0/24 becomes stuck-in-active on R4
• D. R3 does not advertise 192.168.0.0/24 to R4 anymore

Question 8

Refer to the exhibit.

Routers A and B are the edge devices at two different sites as shown. If each site contains an IPv6
network that must be able to communicate over an IPsec tunnel, which type of authentication can
be in use between the two sites?

• A. MD5
• B. pre-shared key
• C. 802.1X
• D. CHAP

Question 9

Which way to influence path selection with EIGRP is preferred?

• A. changing the bandwidth, because it does not have any impact on other router features.
• B. changing the bandwidth, because that is what Cisco recommends.
• C. changing the bandwidth, because ii must be done only on one interface along the path.
• D. changing the delay, even if it must be done on multiple interfaces

Question 10

In which 802.1D port state are the root bridge. the root port, and the designated port(s) elected?

• A. Listening
• B. Forwarding
• C. Learning
• D. Disabled
• E. Blocking

Question 11

What are three valid HSRP states? (Choose three.)

• A. listen
• B. learning
• C. full
• D. established
• E. speak
• F. INIT

Question 12

External EIGRP route exchange on routers R1 and R2 was failing because the routers had duplicate
router IDs. You changed the eigrp router-id command on R1, but the problem persists. With
additional action must you take to enable the routers to exchange routes?

• A. Change the corresponding loopback address.
• B. Change the router ID on R2.
• C. Reset the EIGRP neighbor relationship.
• D. Clear the EIGRP process.

Question 13

Which two statement about the EIGRP Over the Top feature are true? (Choose two.)

• A. EIGRP routers traffic between the PE devices.
• B. Traffic is LISP-encapsulated on the control plan
• C. The neighbor command must be configured with USP encapsulation on each CE device
• D. The network statement must be configured on each PE device to connect separate EIGRP sites.
• E. Traffic is LISP-encapsulated on the data plan

Question 14

Refer to the exhibit.

What are two effects of the given configuration? (Choose two.)

• A. The router will fail to form neighbor adjacencies over all EIGRP interfaces except F0/0
• B. The router will fail to form neighbor adjacencies over interfaces F0/0
• C. The router will manually summarize the 192.168.12.0127 network
• D. The router will install the 192.168.12.0/27 network into its EIGRP topology table
• E. Auto-summarization will be enabled to the FO/O interface

Question 15

Which two statements about 1Pv6 6to4 tunnels are true? (Choose two)

• A. Sites use addresses from the 2002::/16 prefix
• B. Sites use addresses from link-local scope
• C. They are point-to-multipoint tunnels
• D. They are point-to-point tunnels
• E. They rely on GRE encapsulation