CCNA Exam Questions Part 2

CCNA Exam Questions Part 2

Which component of an Ethernet frame is used to notify a host that traffic is coming?

Preamble; A preamble is a 7 Byte field in the Ethernet frame which helps the receiver to know that it is an actual data (Ethernet Frame) and not some random noise in the transmission medium. It acts like a doorbell telling about the incoming data.

Refer to the exhibit. How will switch SW2 handle traffic from VLAN 10 on SW1?

It sends the traffic to VLAN 100.

You are configuring your edge routers interface with a public IP address for internet connectivity. The router needs to obtain the IP address from the service provider dynamically. Which command is needed on interface FastEthernet 0/0 to accomplish this?

ip address dhcp

What are two reasons that cause late collisions to increment on an Ethernet interface?

When the cable length limits are exceeded and when one side of the connection is configured for half-duplex.

Which IPv6 address type provides communication between subnets and cannot route on the Internet?

Unique local

A user configured OSPF in a single area between two routers A serial interface connecting R1 and R2 is running encapsulation PPP. By default which OSPF network type is seen on this interface when the user types show ip ospf interface on R1 or R2?

point-to-point

You have two paths for the 10.10.10.0 network - one that has a feasible distance of 3072 and the other of 6144. What do you need to do load balance your EIGRP routes?

Change the configuration so they both have the same feasible distance and change the variance for the path that has a feasible distance of 3072 to 2.

Refer to the exhibit. Which two statements about the interface that generated the output are true?

Learned MAC addresses are deleted after five minutes of inactivity and it has dynamically learned two secure MAC addresses.

Which two circumstances can prevent two routers from establishing an OSPF neighbor adjacency?

Mismatched hello timers and dead timers, and the use of the same router ID on both devices.

Which two statements about the purpose of the OSI model are accurate?

Defines the network functions that occur at each layer and facilitates an understanding of how information travels throughout a network.

Which option best describes an API?

A contract that describes how various components communicate and exchange data with each other.

Which of the following is the JSON encoding of a dictionary or hash?

{"key": "value"}	

What will happen if you configure the logging trap debug command on a router?

It causes the router to send all messages to the syslog server.

An engineer must configure a /30 subnet between two routers. Which usable IP address and subnet mask combination meets this criteria?

interface e0/0/0
description to HQ-A371:10975
ip address 209.165.201.2 255.255.255.252	

How does STP prevent forwarding loops at OSI Layer 2?

Port blocking

Which three statements about MAC addresses are correct?

To communicate with other devices on a network, a network device must have a unique MAC address. A MAC address contains two main components, the first of which identifies the manufacturer of the hardware and the second of which uniquely identifies the hardware, and an example of a MAC address is 0A:26:B8:D6:65:90.

Which Cisco IOS command will indicate that interface GigabitEthernet 0/0 is configured via DHCP?

show ip interface GigabitEthernet 0/0	

Which command can you enter to allow Telnet to be supported in addition to SSH?

transport input telnet ssh

Refer to the exhibit. The default-information originate command is configured under the R1 OSPF configuration. After testing, workstations on VLAN 20 at Site B cannot reach a DNS server on the Internet. Which action corrects the configuration issue?

Configure the ip route 0.0.0.0 0.0.0.0 10.10.10.18 command on R1.

Which three describe the reasons large OSPF networks use a hierarchical design? (Choose three)

To speed up convergence, to reduce routing overhead, and to confine network instability to single areas of the network.

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

11111100

Refer to the exhibit. If R1 receives a packet destined to 172.16.1.1 to which IP address does it send the packet?

192.168.14.4

Which two statements about VTP are true? (Choose two.)

All switches must be configured with the same VTP domain name and all switches must use the same VTP version.

Refer to the exhibit. On R1 which routing protocol is in use on the route to 192.168.10.1?

EIGRP

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

To enable intra-enterprise communication and to conserve global address space.

Which type does a port become when it receives the best BPDU on a bridge?

The root port

Which value can you modify to configure a specific interface as the preferred forwarding interface?

The port priority

Which statement about VLAN configuration is true?

The switch must be in VTP server or transparent mode before you can configure a VLAN.

Refer to exhibit. Which command do you enter so that R1 advertises the loopback0 interface to the BGP Peers?

Network 172.16.1.32 mask 255.255.255.224

Refer to exhibit. What administrative distance has route to 192.168.10.1?

90

Which value is used to determine the active router in an HSRP default configuration?

Router IP address

Refer to the exhibit. If RTR01 is configured as shown, which three addresses will be received by other routers that are running EIGRP on the network? (Choose three)

192.168.2.0, 10.0.0.0, and 172.16.0.0

Which configuration command can you apply to a HSRP router so that its local interface becomes active if all other routers in the group fail?

No additional config is required

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?

Configure the default gateway.

Which statement about Cisco Discovery Protocol is true?

It is a Cisco-proprietary protocol.

Refer to the exhibit. How will the router handle a packet destined for 192.0.2.156?

The router will forward the packet via Serial2.

Which technique can you use to route IPv6 traffic over an IPv4 infrastructure?

6to4 tunneling

Which statements describe the routing protocol OSPF? (Choose three)

It supports VLSM, it confines network instability to one area of the network, and it allows extensive control of routing updates.

Refer to the exhibit. After you apply the give configurations to R1 and R2 you notice