Cisco CCNA 200-301 Questions & Answers

• Question 741:

  When configuring an EtherChannel bundle, which mode enables LACP only if a LACP device is detected?

  A. Passive

  B. Desirable

  C. On

  D. Auto

  E. Active

  Correct Answer: A

  The LACP is Link Aggregation Control Protocol. LACP is an open protocol, published under the 802.3ad.

  The modes of LACP are active, passive or on. The side configured as "passive" will waiting the other side that should an Active for the Etherchannel to be established. PAgP is Port-Aggregation Protocol. It is Cisco proprietary protocol. The

  mode are On, Desirable or Auto. Desirable ?Auto will establish an EtherChannel.

  An example of how to configure an Etherchannel:

  SwitchFormula1>enable

  SwitchFormula1#configure terminal

  SwitchFormula1(config)# interface range f0/5 -14

  SwitchFormula1(config-if-range)# channel-group 13 mode ?

  active Enable LACP unconditionally

  auto Enable PAgP only if a PAgP device is detected

  desirable Enable PAgP unconditionally

  on Enable Etherchannel only

  passive Enable LACP only if a LACP device is detected

• Question 742:

  In a CDP environment, what happens when the CDP interface on an adjacent device is configured without an IP address?

  A. CDP becomes inoperable on that neighbor

  B. CDP uses the IP address of another interface for that neighbor

  C. CDP operates normally, but it cannot provide IP address information for that neighbor

  D. CDP operates normally, but it cannot provide any information for that neighbor

  Correct Answer: C

  Although CDP is a Layer 2 protocol but we can check the neighbor IP address with the "show cdp neighbor detail" command. If the neighbor does not has an IP address then CDP still operates without any problem. But the IP address of that neighbor is not provided.

• Question 743:

  Which command is used to enable LLDP globally on a Cisco IOS ISR?

  A. lldp run

  B. lldp enable

  C. lldp transmit

  D. cdp run

  E. cdp enable

  Correct Answer: A

  Link Layer Discovery Protocol (LLDP) is an industry standard protocol that allows devices to advertise, and discover connected devices, and there capabilities (same as CDP of Cisco). To enable it on Cisco devices, we have to use this command under global configuration mode:

  Sw(config)# lldp run

• Question 744:

  Which command should you enter to configure an LLDP delay time of 5 seconds?

  A. lldp timer 5000

  B. lldp holdtime 5

  C. lldp reinit 5000

  D. lldp reinit 5

  Correct Answer: D

  1.

  lldp holdtime seconds: Specify the amount of time a receiving device should hold the information from your device before discarding it

  2.

  lldp reinit delay: Specify the delay time in seconds for LLDP to initialize on an interface

  3.

  lldp timer rate: Set the sending frequency of LLDP updates in seconds

  Reference: https://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst3560/software/release/12-2_55_se/configuration/guide/3560_scg/swlldp.html

• Question 745:

  Which two options are the best reasons to use an IPV4 private IP space? (Choose two.)

  A. to enable intra-enterprise communication

  B. to implement NAT

  C. to connect applications

  D. to conserve global address space

  E. to manage routing overhead

  Correct Answer: AD

• Question 746:

  Which two statements are true about the command ip route 172.16.3.0 255.255.255.0 192.168.2.4? (Choose two.)

  A. It establishes a static route to the 172.16.3.0 network.

  B. It establishes a static route to the 192.168.2.0 network.

  C. It configures the router to send any traffic for an unknown destination to the 172.16.3.0 network.

  D. It configures the router to send any traffic for an unknown destination out the interface with the address 192.168.2.4.

  E. It uses the default administrative distance.

  F. It is a route that would be used last if other routes to the same destination exist.

  Correct Answer: AE

  The command for static routes are “ip route (destination) (subnet mask) (next hop)” making 3.0 the destination network (A). E also is correct because the question did not add a custom administrative distance making it the default of 1.

• Question 747:

  Which two goals reasons to implement private IPv4 addressing on your network? (Choose two.)

  A. Comply with PCI regulations

  B. Conserve IPv4 address

  C. Reduce the size of the forwarding table on network routers

  D. Reduce the risk of a network security breach

  E. Comply with local law

  Correct Answer: BD

• Question 748:

  What is the binary pattern of unique ipv6 unique local address?

  A. 00000000

  B. 11111100

  C. 11111111

  D. 11111101

  Correct Answer: D

  This is the current Unique Local Address being used. Check Official Certification Guide Volume 1, page 551(Unique Local Addresses).

• Question 749:

  What are two benefits of private IPv4 IP addresses? (Choose two.)

  A. They are routed the same as public IP addresses.

  B. They are less costly than public IP addresses.

  C. They can be assigned to devices without Internet connections.

  D. They eliminate the necessity for NAT policies.

  E. They eliminate duplicate IP conflicts.

  Correct Answer: BC

• Question 750:

  What are two benefits that the UDP protocol provide for application traffic? (Choose two.)

  A. UDP traffic has lower overhead than TCP traffic

  B. UDP provides a built-in recovery mechanism to retransmit lost packets

  C. The CTL field in the UDP packet header enables a three-way handshake to establish the connection

  D. UDP maintains the connection state to provide more stable connections than TCP

  E. The application can use checksums to verify the integrity of application data

  Correct Answer: AE