Finding Refresh 400-101 questions

It is more faster and easier to pass the Cisco 400-101 exam by using Actual Cisco CCIE Routing and Switching (v5.0) questuins and answers. Immediate access to the Most up-to-date 400-101 Exam and find the same core area 400-101 questions with professionally verified answers, then PASS your exam with a high score now.


The article at Testaimer.com going over http://www.testaimer.com/400-101-test is very comprehensive.

2021 Apr 400-101 vce

Q411. Which two statements about static NAT are true? (Choose two.) 

A. An outside local address maps to the same outside global IP address. 

B. An inside local address maps to a different inside global IP address. 

C. An outside local address maps to a different outside global IP address. 

D. An inside local address maps to the same inside global IP address. 

Answer: A,D 

Explanation: 

Example found at the reference link below: Reference: http://www.cisco.com/c/en/us/support/docs/ip/network-address-translation-nat/4606-8.html 


Q412. Refer to the exhibit. 

Which option is the result of this configuration? 

A. Devices in OSPF area 15 can reach the summary route 192.168.0.0/16 and its more specific subnets. 

B. Devices in OSPF area 15 can reach only the more specific routes of 192.168.0.0/16. 

C. Devices in OSPF area 0 can reach the summary route 192.168.0.0/16 and its more specific subnets. 

D. Devices in OSPF area 0 can reach only the summary route of 192.168.0.0/16. 

Answer:

Explanation: 

. area range 

To consolidate and summarize routes at an area boundary, use the area range command in router configuration mode. To disable this function, use theno form of this command. Area area-id range ip-address mask [advertise | not-advertise] [cost cost] no area area-id range ip-address mask [advertise | not-advertise] [cost cost] 

. Syntax Description 

area-id 

Identifier of the area about which routes are to be summarized. It can be specified as either a decimal value or as an IP address. 

ip-address 

IP address. 

mask 

IP address mask. 

advertise 

(Optional) Sets the address range status to advertise and generates a Type 3 summary link-state advertisement (LSA). 

not-advertise 

(Optional) Sets the address range status to DoNotAdvertise. The Type 3 summary LSA is suppressed, and the component networks remain hidden from other networks. 

Reference: http://www.cisco.com/c/en/us/td/docs/ios/12_2/iproute/command/reference/fiprrp_r/1rfospf. html 


Q413. Which BGP feature allows BGP routing tables to be refreshed without impacting established BGP sessions? 

A. BGP synchronization 

B. soft reconfiguration 

C. confederations 

D. hard reset 

Answer:

Explanation: 

Clearing a BGP session using a hard reset invalidates the cache and results in a negative impact on the operation of networks as the information in the cache becomes unavailable. Soft reset is recommended because it allows routing tables to be reconfigured and activated without clearing the BGP session. Soft reset is done on a per-neighbor basis. 

Reference: http://www.cisco.com/en/US/products/ps6599/products_data_sheet09186a0080087b3a.ht ml 


Q414. What two values are required to implement an EIGRP named configuration? (Choose two.) 

A. virtual-instance-name 

B. address-family 

C. router-id 

D. subnet-mask 

E. process-id 

Answer: A,B 


Q415. Which three statements about IPsec VTIs are true? (Choose three.) 

A. IPsec sessions require static mapping to a physical interface. 

B. They can send and receive multicast traffic. 

C. They can send and receive traffic over multiple paths. 

D. They support IP routing and ACLs. 

E. They can send and receive unicast traffic. 

F. They support stateful failover. 

Answer: B,D,E 


Latest 400-101 exam:

Q416. Which two functions are performed by the DR in OSPF? (Choose two.) 

A. The DR originates the network LSA on behalf of the network. 

B. The DR is responsible for the flooding throughout one OSPF area. 

C. The DR forms adjacencies with all other OSPF routers on the network, in order to synchronize the LSDB across the adjacencies. 

D. The DR is responsible for originating the type 4 LSAs into one area. 

Answer: A,C 

Explanation: 

The DR originates the network LSA (LSA Type 2) which lists all the routers on the segment it is adjacent to -> A is correct. Types 2 are ooded within its area only; does not cross ABR -> B is incorrect. The broadcast and non-broadcast network types elect a DR/BDR. They form adjacencies to all other OSPF routers on the network and help synchronize the Link State Database (LSDB) across the adjacencies -> C is correct. LSAs Type 4 are originated by the ABR to describe an ASBR to routers in other areas so that routers in other areas know how to get to external routes through that ASBR -> D is incorrect. 


Q417. Refer to the exhibit. 

If OSPF is implemented on the network, which additional configuration is needed to allow traffic from host 10.4.1.15/24 to host 10.1.2.20/24? 

A. A virtual link between router 2 and router 4 

B. A virtual link between router 3 and router 4 

C. A virtual link between router 2 and router 3 

D. The current design allows traffic between the two hosts. 

Answer:

Explanation: 

This specific traffic from 10.4.1.0/24 to 10.1.2.0/24 would work because this traffic crosses only over the single OSPF area of 0.0.0.1. 

However, traffic from hosts on R4 to R1 would indeed need a virtual link, since area 0.0.0.2 is not connected to the backbone area of 0.0.0.0. 


Q418. Refer to the exhibit. 

R1 is able to reach only some of the subnets that R2 is advertising. Which two configuration changes can you make to ensure that R1 can reach all routes from R2? (Choose two.) 

A. Add an additional permit statement to the LOOPBACKS route map. 

B. Modify the LOOPBACKS access list to include all loopback subnets. 

C. Add an additional statement in the LOOPBACKS route map to match both Level 1 and Level 2 circuits. 

D. Add an additional statement in the LOOPBACKS route map to match the R1 CLNS address. 

E. Configure the interfaces between R1 and R2 with a Level 1 IS-IS circuit. 

F. Configure the interfaces between R1 and R2 with a Level 2 IS-IS circuit. 

Answer: A,B 

Explanation: 

In this example, the access list is using a 0.0.3.255 wildcard mask, so only the loopback IP’s of 172.16.0.0 – 172.16.3.255 will be included. We need to add another statement to allow loopback 4 to be advertised, or modify the wildcard mask to include them all. 


Q419. Which statement about VRRP is true? 

A. It supports load balancing. 

B. It can be configured with HSRP on a switch or switch stack. 

C. It supports IPv4 and IPv6. 

D. It supports encrypted authentication. 

Answer:

Explanation: 

VRRP Limitations 

. You can configure both HSRP and VRRP on a switch or switch stack. However, you cannot add a switch model that supports only one protocol to a stack that is configured for both protocols. 

. The VRRP implementation on the switch does not support the MIB specified in RFC 2787. 

. The VRRP implementation on the switch supports only text -based authentication. 

. The switch supports VRRP only for IPv4. 

Reference: http://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst3750x_3560x/software/release/1 2-2_58_se/configuration/guide/3750xscg/swhsrp.html#pgfId-1107127 


Q420. Refer to the exhibit. 

What happens to packets when traffic in the icmp-class class exceeds the policed amount? 

A. Packets are discarded and a message is logged. 

B. Packets are discarded and a trap is sent to any servers that are configured to receive traps. 

C. Packets are discarded silently. 

D. Packets are discarded and an inform is sent to any servers that are configured to receive informs. 

Answer:

Explanation: 

service-policy {input| output policy-map-name Example: 

Router(config-cp)# service-policy input control-plane-policy 

Attaches a QoS service policy to the control plane. Note the following points: 

. input --Applies the specified service policy to packets received on the control plane. 

. output --Applies the specified service policy to packets transmitted from the control plane and enables the router to silently discard packets. 

. policy-map-name --Name of a service policy map (created using the policy-mapcommand) to be attached. The name can be a maximum of 40 alphanumeric characters. 

In this case, the service policy is set to output, which drops the traffic silently per above. 

Reference: http://www.cisco.com/c/en/us/td/docs/ios-xml/ios/qos_plcshp/configuration/15-mt/qos-plcshp-15-mt-book/qos-plcshp-ctrl-pln-plc.html