Exam Code: 400-101 (Practice Exam Latest Test Questions VCE PDF)
Exam Name: CCIE Routing and Switching (v5.0)
Certification Provider: Cisco
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2021 Mar 400-101 free practice test

Q11. Which two packet types does an RTP session consist of? (Choose two.) 

A. TCP 

B. RTCP 

C. RTP 

D. ICMP 

E. BOOTP 

F. ARP 

Answer: B,C 

Explanation: 

An RTP session is established for each multimedia stream. A session consists of an IP address with a pair of ports for RTP and RTCP. For example, audio and video streams use separate RTP sessions, enabling a receiver to deselect a particular stream. The ports which form a session are negotiated using other protocols such as RTSP (using SDP in the setup method) and SIP. According to the specification, an RTP port should be even and the RTCP port is the next higher odd port number. 

Reference: http://en.wikipedia.org/wiki/Real-time_Transport_Protocol 


Q12. Which two Cisco IOS AAA features are available with the local database? (Choose two.) 

A. command authorization 

B. network access authorization 

C. network accounting 

D. network access authentication 

Answer: A,D 

Explanation: 

Configuring the Local Database 

This section describes how to manage users in the local database. You can use the local database for CLI access authentication, privileged mode authentication, command authorization, network access authentication, and VPN authentication and authorization. You cannot use the local database for network access authorization. The local database does not support accounting. 

Reference: http://www.cisco.com/c/en/us/td/docs/security/asa/asa80/configuration/guide/conf_gd/aaa.h tml 


Q13. Which IP SLA operation type is enhanced by the use of the IP SLAs Responder? 

A. DNS 

B. HTTP 

C. ICMP Echo 

D. UDP Echo 

Answer:

Explanation: 

Figure 1. UDP Echo Operation 

Response time (round-trip time) is computed by measuring the time taken between sending a UDP echo request message from Device B to the destination device--Device A--and receiving a UDP echo reply from Device A. UDP echo accuracy is enhanced by using the IP SLAs Responder at Device A, the destination Cisco device. If the destination device is a Cisco device, then IP SLAs sends a UDP datagram to any port number that you specified. Using the IP SLAs Responder is optional for a UDP echo operation when using Cisco devices. The IP SLAs Responder cannot be configured on non-Cisco devices. 

Reference: http://www.cisco.com/c/en/us/td/docs/ios-xml/ios/ipsla/configuration/15-mt/sla-15-mt-book/sla_udp_echo.html 


Q14. DRAG DROP 

Drag and drop the IPv6 multicast feature on the left to its corresponding function on the right. 

Answer: 


Q15. Refer to the exhibit. 

Which statement describes what the authoritative flag indicates? 

A. Authentication was used for the mapping. 

B. R1 learned about the NHRP mapping from a registration request. 

C. Duplicate mapping in the NHRP cache is prevented. 

D. The registration request had the same flag set. 

Answer:

Explanation: 

Show NHRP: Examples 

The following is sample output from the show ip nhrp command: 

Router# show ip nhrp 

10.0.0.2 255.255.255.255, tunnel 100 created 0:00:43 expire 1:59:16 

TypE. dynamic Flags: authoritative 

NBMA address: 10.1111.1111.1111.1111.1111.1111.1111.1111.1111.11 

10.0.0.1 255.255.255.255, Tunnel0 created 0:10:03 expire 1:49:56 

TypE. static Flags: authoritative 

The fields in the sample display are as follows: 

Flags: 

authoritative—Indicates that the NHRP information was obtained from the Next Hop Server or router that maintains the NBMA-to-IP address mapping for a particular destination. 

Reference: http://www.cisco.com/c/en/us/td/docs/ios/12_4/ip_addr/configuration/guide/hadnhrp.html 


Latest 400-101 free question:

Q16. Which two issues is TCP Sequence Number Randomization designed to prevent? (Choose two.) 

A. DDOS attacks 

B. OS fingerprinting 

C. man-in-the-middle attacks 

D. ARP poisoning 

E. Smurf attack 

Answer: B,C 


Q17. DRAG DROP 

Drag and drop the OTV component on the left to the function it performs on the right. 

Answer: 


Q18. Which additional feature must be enabled on a switch to allow PIM snooping to function correctly? 

A. IGMP snooping 

B. port security 

C. storm control 

D. dynamic ARP inspection 

Answer:


Q19. Which AS_PATH attribute can you use to prevent loops when implementing BGP confederations? 

A. AS_CONFED_SET 

B. AS_SEQUENCE 

C. AS_CONFED_SEQUENCE 

D. AS_SET 

Answer:


Q20. Which two statements are characteristics of Ethernet private LAN circuits? (Choose two.) 

A. They support communication between two or more customer endpoints. 

B. They utilize more than one bridge domain. 

C. They support point-to-multipoint EVC. 

D. They support multipoint-to-multipoint EVC. 

Answer: A,D 

Explanation: 

An Ethernet Private LAN (EPLAN) is a multipoint–to–multipoint EVC. EPLAN is an EVC that supports communication between two or more UNIs. In EPLAN, only one EVC can exist on a port and the port can have only one EFP. 

Reference: https://www.cisco.com/c/en/us/td/docs/optical/cpt/r9_3/configuration/guide/cpt93_configurat ion/cpt93_configuration_chapter_0100.pdf