Cisco CCNA 200-301 Questions & Answers

• Question 681:

  Which NAT term is defined as a group of addresses available for NAT use?

  A. NAT pool

  B. dynamic NAT

  C. static NAT

  D. one-way NAT

  Correct Answer: A

• Question 682:

  Refer to the exhibit. After you apply the given configuration to a router, the DHCP clients behind the device cannot communicate with hosts outside of their subnet. Which action is most likely to correct the problem?

  

  A. Configure the dns server on the same subnet as the clients

  B. Activate the dhcp pool

  C. Correct the subnet mask

  D. Configure the default gateway

  Correct Answer: D

• Question 683:

  Refer to the exhibit. Which rule does the DHCP server use when there is an IP address conflict?

  

  A. The address is removed from the pool until the conflict is resolved.

  B. The address remains in the pool until the conflict is resolved.

  C. Only the IP detected by Gratuitous ARP is removed from the pool.

  D. Only the IP detected by Ping is removed from the pool.

  E. The IP will be shown, even after the conflict is resolved.

  Correct Answer: A

  An address conflict occurs when two hosts use the same IP address. During address assignment, DHCP checks for conflicts using ping and gratuitous ARP. If a conflict is detected, the address is removed from the pool. The address will not be assigned until the administrator resolves the conflict.

• Question 684:

  Which command can you enter to determine the addresses that have been assigned on a DHCP Server?

  A. Show ip DHCP database.

  B. Show ip DHCP pool.

  C. Show ip DHCP binding.

  D. Show ip DHCP server statistic.

  Correct Answer: C

• Question 685:

  What is the authoritative source for an address lookup?

  A. a recursive DNS search

  B. the operating system cache

  C. the ISP local cache

  D. the browser cache

  Correct Answer: A

• Question 686:

  Which command is used to verify the DHCP relay agent address that has been set up on your Cisco IOS router?

  A. show ip interface brief

  B. show ip dhcp bindings

  C. show ip route

  D. show ip interface

  E. show interface

  F. show ip dhcp pool

  Correct Answer: D

  With that command you can see if the helper address (dhcp relay) is configured.

  Router1#sh ip interface g0/0

  GigabitEthernet0/0 is up, line protocol is up (connected)

  Internet address is 10.0.0.1/30

  Broadcast address is 255.255.255.255

  Address determined by setup command

  MTU is 1500 bytes

  Helper address is 192.168.4.2

• Question 687:

  Which feature or protocol is required for an IP SLA to measure UDP jitter?

  A. LLDP

  B. EEM

  C. CDP

  D. NTP

  Correct Answer: D

  IP SLA (Internet Protocol Service Level Agreement) is a feature in Cisco IOS that allows administrators to measure and monitor network performance. One of the types of performance measurements that can be performed using IP SLA is UDP jitter, which is a measure of the variability in the delay of UDP packets.

  To measure UDP jitter using IP SLA, the NTP (Network Time Protocol) feature must be enabled on the device. NTP is used to synchronize the device's clock with a reference time source, which is necessary to accurately measure the delay of UDP packets. Without NTP, the device's clock may drift over time, leading to inaccurate jitter measurements.

• Question 688:

  Refer to the exhibit. When running EIGRP, what is required for RouterA to exchange routing updates with RouterC?

  

  A. AS numbers must be changed to match on all the routers

  B. Loopback interfaces must be configured so a DR is elected

  C. The no auto-summary command is needed on Router A and Router C

  D. Router B needs to have two network statements, one for each connected network

  Correct Answer: A

  This question is to examine the understanding of the interaction between EIGRP routers. The following information must be matched so as to create neighborhood. EIGRP routers to establish, must match the following information:

  1.

  AS Number;

  2.

  K value.

• Question 689:

  Refer to the exhibit. Given the output for this command, if the router ID has not been manually set, what router ID will OSPF use for this router?

  

  A. 10.1.1.2

  B. 10.154.154.1

  C. 172.16.5.1

  D. 192.168.5.3

  Correct Answer: C

  The highest IP address of all loopback interfaces will be chosen -> Loopback 0 will be chosen as the router ID.

• Question 690:

  Which feature or protocol determines whether the QOS on the network is sufficient to support IP services?

  A. LLDP

  B. CDP

  C. IP SLA

  D. EEM

  Correct Answer: C

  IP SLA allows an IT professional to collect information about network performance in real time. Therefore it helps determine whether the QoS on the network is sufficient for IP services or not.

  Cisco IOS Embedded Event Manager (EEM) is a powerful and flexible subsystem that provides real-time network event detection and onboard automation. It gives you the ability to adapt the behavior of your network devices to align with your business needs.