Cisco CCNA 200-301 Questions & Answers

• Question 1131:

  What are two roles of the Dynamic Host Configuration Protocol (DHCP)? (Choose two.)

  A. The DHCP server assigns IP addresses without requiring the client to renew them.

  B. The DHCP server leases client IP addresses dynamically.

  C. The DHCP client can request up to four DNS server addresses.

  D. The DHCP server offers the ability to exclude specific IP addresses from a pool of IP addresses.

  E. The DHCP client maintains a pool of IP addresses it can assign.

  Correct Answer: BD

• Question 1132:

  Which command must be entered when a device is configured as an NTP server?

  A. ntp peer

  B. ntp master

  C. ntp authenticate

  D. ntp server

  Correct Answer: B

  -

  ntp master {stratum-level}: NTP server mode--the device acts only as an NTP server, and not as an NTP client. The device gets its time information from the internal clock on the device.

  -

  ntp server {address | hostname}: NTP client/server mode--the device acts as both client and server. First, it acts as an NTP client, to synchronize time with a server. Once synchronized, the device can then act as an NTP server, to supply time to other NTP clients. reference : Wendell Odom CCNA vol 2

• Question 1133:

  R1 has learned route 10.10.10.0/24 via numerous routing protocols. Which route is installed?

  A. route with the next hop that has the highest IP

  B. route with the lowest cost

  C. route with the lowest administrative distance

  D. route with the shortest prefix length

  Correct Answer: C

• Question 1134:

  Which two minimum parameters must be configured on an active interface to enable OSPFV2 to operate? (Choose two.)

  A. OSPF process ID

  B. OSPF MD5 authentication key

  C. OSPF stub flag

  D. IPv6 address

  E. OSPF area

  Correct Answer: AE

  Key word is "enable", this is not pertaining to adjacency with neighbors.

• Question 1135:

  Refer to the exhibit.

  

  What commands are needed to add a subinterface to Ethernet0/0 on R1 to allow for VLAN 20, with IP address 10.20.20.1/24?

  A. R1(config)#interface ethernet0/0 R1(config)#encapsulation dot1q 20 R1(config)#ip address 10.20.20.1 255.255.255.0

  B. R1(config)#interface ethernet0/0.20 R1(config)#encapsulation dot1q 20 R1(config)#ip address 10.20.20.1 255.255.255.0

  C. R1(config)#interface ethernet0/0.20 R1(config)#ip address 10.20.20.1 255.255.255.0

  D. R1(config)#interface ethernet0/0 R1(config)#ip address 10.20.20.1 255.255.255.0

  Correct Answer: B

• Question 1136:

  Refer to the exhibit.

  

  To which device does Router1 send packets that are destined to host 10.10.13.165?

  A. Router2

  B. Router3

  C. Router4

  D. Router5

  Correct Answer: B

  The subnet on the routing table that has 10.10.13.165 is the 10.10.13.160/29.

  The 10.10.13.160/29 subnet is routed via 10.10.10.5 which is one of the usable hosts on the subnet between R1 and R3.

• Question 1137:

  What are two reasons for an engineer to configure a floating static route? (Choose two.)

  A. to enable fallback static routing when the dynamic routing protocol fails

  B. to route traffic differently based on the source IP of the packet

  C. to automatically route traffic on a secondary path when the primary path goes down

  D. to support load balancing via static routing

  E. to control the return path of traffic that is sent from the router

  Correct Answer: AC

• Question 1138:

  Refer to the exhibit.

  

  How does router R1 handle traffic to 192.168.10.16?

  A. It selects the IS-IS route because it has the shortest prefix inclusive of the destination address

  B. It selects the RIP route because it has the longest prefix inclusive of the destination address

  C. It selects the OSPF route because it has the lowest cost

  D. It selects the EIGRP route because it has the lowest administrative distance

  Correct Answer: B

  1.

  Longest Prefix

  2.

  Administrative distance

  3.

  Metric https://packetlife.net/blog/2010/aug/16/route-preference/

• Question 1139:

  Refer to the exhibit.

  

  A router received these five routes from different routing information sources. Which two routes does the router install in its routing table? (Choose two)

  A. OSPF route 10.0.0.0/30

  B. IBGP route 10.0.0.0/30

  C. OSPF route 10.0.0.0/16

  D. EIGRP route 10.0.0.1/32

  E. RIP route 10.0.0.0/30

  Correct Answer: AD

  Ref: Route Selection in Cisco Routers - Cisco

  “…

  Summary

  The LONGEST PREFIX MATCH always wins among the routes actually installed in the routing table, while the routing protocol with the LOWEST ADMINISTRATIVE DISTANCE always wins when installing routes into the routing table.

  …”

  You have 5 routes from 4 different routing protocols. Two of these routes are from OSPF: the router must choose (between them) which one to install in the routing table, and here the longest prefix match criteria wins (router chooses OSPF

  route 10.0.0.0/30).

  Now, you have 4 routes. 3 routes are all /30 routes (same prefix length): the router chooses on the basis of lowest administrative distance, and OSPF wins (administrative distance for these protocols is OSPF 110, which is lower than RIP 120,

  which is lower than BGP 200).

  The last route is an EIGRP one, and this is also a host route (look at the /32 prefix). There can't be a longest prefix than a host route. Also, this route doesn't have to compete with any other route to be installed in the routing table. So, this

  route is the router's second choice.

• Question 1140:

  Refer to the exhibit.

  

  How does the router manage traffic to 192.168.12.16?

  A. It chooses the EIGRP route because it has the lowest administrative distance.

  B. It load-balances traffic between all three routes.

  C. It chooses the OSPF route because it has the longest prefix inclusive of the destination address.

  D. It selects the RIP route because it has the longest prefix inclusive of the destination address.

  Correct Answer: D

  OSPF ( /28) Is not inclusive of the IP address. 0-15 = 16 IPs = /28. RIP is because /27 = 32 IPs, 0-31