300-101 | Most up-to-date 300-101 Exam Study Guides With New Update Exam Questions

Q14. A network engineer executes the show ip sla statistics command. What does the output of this command show?

A. Operation availability

B. device CPU utilization

C. interface packet statistics.

D. packet sequencing

Answer: A

Q15. In a comparison of an IPv4 header with an IPv6 header, which three statements are true?

(Choose three.)

A. An IPv4 header includes a checksum. However, an IPv6 header does not include one.

B. A router has to recompute the checksum of an IPv6 packet when decrementing the TTL.

C. An IPv6 header is half the size of an IPv4 header.

D. An IPv6 header has twice as many octets as an IPv4 header.

E. An IPv6 header is simpler and more efficient than an IPv4 header.

F. The 128-bit IPv6 address makes the IPv6 header more complicated than an IPv4 header.

Answer: A,D,E

Explanation:

The image below shows the differences between an IPv4 header and an IPv6 header:

(Reference and a good resource, too: http://www.cisco.com/web/about/ac123/ac147/archived_issues/ipj_9-3/ipv6_internals.html)

Q16. Which NAT Command to disable dynamic ARP learning on an interface?

A. R(config-if) # ip nat enable

B. R(config-if) # ip nat inside

C. R(config-if)# ip nat outside

D. R(config)# ip nat service

E. R(config)# ip nat allow static host

Answer: E

Q17. Which two authentication protocols does PPP support? (Choose two.)

A. WAP

B. PAP

C. CHAP

D. EAP

E. RADIUS

Answer: B,C

Q18. Which Cisco VPN technology can use multipoint tunnel, resulting in a single GRE tunnel interface on the hub, to support multiple connections from multiple spoke devices?

A. DMVPN

B. GETVPN

C. Cisco Easy VPN

D. FlexVPN

Answer: A

Q19. Which type of BGP AS number is 64591?

A. a private AS number

B. a public AS number

C. a private 4-byte AS number

D. a public 4-byte AS number

Answer: A

Q20. Which two statements about GRE tunnel interfaces are true?

A. To establish a tunnel, the source interface must be in the up/up state.

B. A tunnel destination must be routable, but it can be unreachable.

C. A tunnel can be established when the source interface is in the up/down state.

D. To establish a tunnel, the source interface must be a loopback.

Answer: A,B

Explanation: http://www.cisco.com/c/en/us/support/docs/ip/generic-routing-encapsulation-gre/118361-technote-gre-00.html

Q21. Which IPV6 address type does RIPng use for next-hop addresses?

A. anycast

B. global

C. multicast

D. site-local

E. link-local

Answer: E

Q22. Where can NetFlow export data for long term storage and analysis?

A. syslog

B. collector

C. another network device

D. flat file

Answer: B

Q23. Using the rules for IPv6 addressing, how can the address 2031:0000:240F:0000:0000:09C0:123A:121B be rewritten?

A. 2031:0:240F::09C0:123A:121B

B. 2031::240F::09C0:123A:121B

C. 2031::240F:9C0::123A:121B

D. 2031::240F:::09C0:123A:121B

Answer: A

Explanation:

Leading zeros can be truncated. For example u201c0000 can be be just written as empty. In the above example :: indicates that it has multiple 0s in that location. Typically the IPv6 format can be written down in three ways 1) compressed, 2) uncompressed and 3) fully uncompressed as shown below. All of the following are the same: