400-101 Certifications Book

Test Information:

Total Questions 1187

Test Number: 400-101  

Vendor Name: Cisco

Cert Name :. CCIE

Test Name: CCIE Routing and Switching Written Exam v5.1

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Question: 1

 

Which statement about Cisco StackWise technology is true?

 

A. All switches in a stack share configuration and routing information to behave as a single unit

B. Removing switches can affect stack performance

C. Only the master switch acts as a forwarding processor

D. Every switch in a stack has its own independent ...configuration file, which enables it to become the stack master if the previous master fails

 

Answer: D    

 

Question: 2

 

Which feature can mitigate hung management sessions?

 

A. Control Plane Policing

B. the service tcp-keepalives-in and service tcp-keepalives-out command

C. the service tcp-small servers command

D. vty lineACLs

 

Answer: B   

 

Question: 3

 

For which reason can two OSPF neighbor routers on the same LAN segment be stuck in the two-way state?

 

A. The two routers have different MTUs on the interface.

B. The two routers are configured with different priorities.

C. The interface priority is set to zero on both routers.

D. Both routers have the same OSPF router ID.

 

Answer: C   

 

Question: 4

 

Which option is an example of SaaS?

 

A. Google Apps

B. Amazon AWS

C. Google App Engine

D. Microsoft Azure

 

Answer: A   

 

Question: 5

 

How does an IPv6 host automatically generate a global address?

 

A. It prepends its interface identifier to the network prefixes contained in Router Advertisement messages.

B. It appends its interface identifier to the network prefixes contained in Router Advertisement messages.

C. It appends its interface identifier to the network prefixes contained in Router Solicitation messages.

D. It prepends its interface identifier to the network prefixes contained in Router Solicitation messages.

 

Answer: B   

 

Question: 6

 

Which two commands should you enter to enable IP Source Guard with IP and MAC address filtering? (Choose two)

 

A. ip verify source tracking

B. switchport port-security

C. ip verify unicast source

D. ip verify source

E. ip verify source port-security

 

Answer: AE   

 

Question: 7

 

 Which mechanism does GET VPN use to preserve IP header information?

 

A. IPsec tunnel mode

B. GRE

C. MPLS

D. IPsec transport mode

 

Answer:  A  

 

Question: 8

 

Which option describes a difference between Ansible and Puppet?

 

A. Ansible|is client-server based.and Puppet is not.

B. Ansible requires an agent,and Puppet does not.

C. Ansible is Python based.and Puppet is Ruby based.

D. Ansible autonates repetitive tasks.and Puppet allows you to run plain ssh command.

 

Answer: C   

 

Question: 9

 

Refer to the exhibit. Which statement describes how a router with this configuration treats packets if the devices at 172.16.12.5 and 192.168.3.2 are unreachable ?

 

A. It routes the packet based on the packet's destination using the route table

B. It routers the packet into a loop and drops it when the TTL reaches zero.

C. It drop the packet immediately.

D. It sends an ICMP source quench message.

 

Answer: A    

 

Question: 10

 

What is the default behavior for a manual summary route when a component route of the summary disappears?

 

A. Regardless of the metric if the componnent route,the metric of the summary is unchanged in order to Keep stability.

B. If the component route previously had the best composite metric ,the same summary metric is retained for stability.

C. If the component route previously had the best composite metric ,the metric of the summary changes to the next-best composite metric.

D. if the component route previously did not have the best composite metric.the summary metric is updated,and updates are sent to peers.

 

 

Answer: C   

 

Question: 11

 

Which feature can you implement to reduce global synchronization?

 

A. WRED

B. marking

C. policing

D. NBAR

 

 

Answer: A   

 

Question: 12

 

What are the two variants of NTPv4? (Choose two.)

 

A. client/server

B. broadcast

C. multicast

D. asymmetric

E. unicast

 

 

Answer:  AB  

 

Question: 13

 

Refer to the exhibit. which routes are advertised by the router?

 

A. No routers

B. BGP routes that originated from AS 65006 and BGP routes that originated on this router

C. All routers

D. BGP routers sourced on this router

E. BGP routes that originated on RT1

 

Answer: B