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2021 Mar 400-101 pdf exam
Q321. Refer to the exhibit.
RIPv2 authentication is failing on a device with this configuration. Which two actions can you take to enable it? (Choose two.)
A. Set the RIP authentication mode to text.
B. Set the RIP authentication mode to MD5.
C. Configure the password encryption for the key.
D. Set the password encryption to AES.
Answer: A,B
Explanation:
See the reference link below for information on configuring RIPv2 authentication, including both test and MD5 modes.
Reference: http://www.cisco.com/c/en/us/support/docs/ip/routing-information-protocol-rip/13719-50.html#configuringplain
Q322. Which three characteristics are shared by subinterfaces and associated EVNs? (Choose three.)
A. IP address
B. routing table
C. forwarding table
D. access control lists
E. NetFlow configuration
Answer: A,B,C
Q323. Which statement about the NHRP network ID is true?
A. It is sent from the spoke to the hub to identify the spoke as a member of the same NHRP domain.
B. It is sent from the hub to the spoke to identify the hub as a member of the same NHRP domain.
C. It is sent between spokes to identify the spokes as members of the same NHRP domain.
D. It is a locally significant ID used to define the NHRP domain for an interface.
Answer: D
Explanation:
The NHRP network ID is used to define the NHRP domain for an NHRP interface and differentiate between multiple NHRP domains or networks, when two or more NHRP domains (GRE tunnel interfaces) are available on the same NHRP node (router). The NHRP network ID is used to help keep two NHRP networks (clouds) separate from each other when both are configured on the same router. The NHRP network ID is a local only parameter. It is significant only to the local router and it is not transmitted in NHRP packets to other NHRP nodes. For this reason the actual value of the NHRP network ID configured on a router need not match the same NHRP network ID on another router where both of these routers are in the same NHRP domain. As NHRP packets arrive on a GRE interface, they are assigned to the local NHRP domain in the NHRP network ID that is configured on that interface.
Reference:
http://www.cisco.com/c/en/us/td/docs/ios/12_4/ip_addr/configuration/guide/hadnhrp.html
Q324. An engineer has configured a router to use EUI-64, and was asked to document the IPv6 address of the router. The router has the following interface parameters:
mac address C601.420F.0007
subnet 2001:DB8:0:1::/64
A. 2001:DB8:0:1:C601:42FF:FE0F:7
B. 2001:DB8:0:1:FFFF:C601:420F:7
C. 2001:DB8:0:1:FE80:C601:420F:7
D. 2001:DB8:0:1:C601:42FE:800F:7
Answer: A
Q325. Refer to the exhibit.
Which two statements about this configuration are true? (Choose two.)
A. It allows 172.16.0.0/16 to be distributed into EIGRP.
B. It allows a default route to be distributed into EIGRP.
C. It allows 172.16.0.0/16 and larger subnets to be distributed into EIGRP.
D. It prevents 172.16.0.0/16 from being distributed into EIGRP.
E. It prevents a default route from being distributed into EIGRP.
F. It creates summary routes and injects them into EIGRP.
Answer: A,B
Explanation:
In this example, the prefix list is configured to only allow the two specific routes of 172.16.0.0/16 and the default route. Any other routes will be filtered.
Rebirth 400-101 free practice exam:
Q326. An access switch at a remote location is connected to the spanning-tree root with redundant uplinks. A network engineer notices that there are issues with the physical cabling of the current root port. The engineer decides to force the secondary link to be the desired forwarding root port. Which action accomplishes this task?
A. Adjust the secondary link to have a lower priority than the primary link.
B. Change the link type to point-to-point.
C. Apply a BPDU filter on the primary interface of the remote switches.
D. Enable Rapid Spanning Tree to converge using the secondary link.
Answer: A
Q327. Refer to the exhibit.
Which two statements about this egress queue are true? (Choose two.)
A. The queue 3 buffer is allocated 20 percent, its drop threshold is 100 percent, and it is guaranteed 400 percent of memory.
B. The queue 1 buffer is allocated 30 percent, its drop threshold is 25 percent, and it is guaranteed 100 percent of memory.
C. The queue 1 buffer is allocated 30 percent, its drop threshold is 100 percent, and it is guaranteed 150 percent of memory.
D. The queue 2 buffer is allocated 30 percent, its drop threshold is 200 percent, and it can use at maximum 400 percent of memory.
E. The queue 3 buffer is allocated 30 percent, its drop threshold is 100 percent, and it can use at maximum 400 percent of memory.
Answer: B,D
Q328. Refer to the exhibit.
Which two statements about this configuration are true? (Choose two.)
A. Pings from SW2 to SW1 fail because SW1 is pruning VLAN 10.
B. VLANs 10 and 200 are added to the SW2 allowed list on interface fa0/22.
C. Pings from SW2 to SW1 are successful.
D. Only VLAN 200 is added to the SW1 allowed list on interface fa0/22.
Answer: B,C
Q329. Refer to the exhibit.
Which two benefits result from using this command on a switch? (Choose two.)
A. The port cannot forward unknown unicast packets.
B. Network security is increased on the configured port.
C. The port cannot forward unknown multicast packets.
D. The port cannot forward unknown broadcast packets.
E. Network security is increased on all ports of the switch.
F. Unknown packets of all types, except unicast, are blocked.
Answer: A,B
Q330. When you enable the MPLS Multi-VRF feature, which two supported routing protocols can be used to exchange routing information between PE routers and CE routers? (Choose two.)
A. BGP
B. RIP
C. OSPF
D. EIGRP
E. IS-IS
Answer: A,B