NEW QUESTION 1

Which statement about Cisco Discovery Protocol is true?

• A. It is a Cisco-proprietary protocol.
• B. It runs on the network layer.
• C. It can discover information from routers, firewalls, and switches.
• D. It runs on the physical layer and the data link layer.

Answer: A

NEW QUESTION 2

What happens when an 802.11a node broadcasts within the range of an 802.11g access point?

• A. The access point transmits, but the node is unable to receive.
• B. A connection occurs
• C. Both the node and the access point are unable to transmit.
• D. The node transmits, but the access point is unable to receive.

Answer: D

NEW QUESTION 3

Refer to the output of the corporate router routing table shown in the graphic.

The corporate router receives an IP packet with a source IP address of 192.168.214.20 and a destination address of 192.168.22.3.
What will the router do with this packet?

• A. It will encapsulate the packet as Frame Relay and forward it out interface Serial 0/0.117.
• B. It will discard the packet and send an ICMP Destination Unreachable message out interface FastEthernet 0/0.
• C. It will forward the packet out interface Serial 0/1 and send an ICMP Echo Reply message out interface serial 0/0.102.
• D. It will change the IP packet to an ARP frame and forward it out FastEthernet 0/0.

Answer: B

Explanation:
Since the destination network is not in the routing table, and no default gateway has been configured, the router will discard the packet and send an ICMP Destination Unreachable message out interface FastEthernet 0/0. It knows to send it out Fa 0/0 because the routing table for the source IP address of 192.168.214.20 shows it was learned from the Fa 0/0 interface.

NEW QUESTION 4

Which Layer 1 devices can be used to enlarge the area covered by a single LAN segment? (Choose two.)

• A. switch
• B. router
• C. NIC
• D. hub
• E. repeater
• F. RJ-45 transceiver

Answer: DE

NEW QUESTION 5

Refer to the exhibit.

Which option describes how SwitchA will handle the frame just received?

• A. It will drop the frame.
• B. It will forward the frame out of port Fa0/3 only.
• C. It will flood the frame out all ports.
• D. It will flood the frame out of all the ports except Fa0/3.

Answer: D

NEW QUESTION 6

Which three commands must you enter to create a trunk that allows VLAN 20? (Choose three)

• A. Switch(config-if)#switchport mode dynamic auto
• B. Switch(config-if)#switchport mode trunk
• C. Switch(config-if)#switchport trunk allowed vlan 20
• D. Switch(config-if)#switchport mode dynamic desirable
• E. Switch(config-if)#switchport trunk encapsulation dotlq
• F. Switch(config-if)#switchport trunk native vlan 20

Answer: BCE

NEW QUESTION 7

Under which circumstance should a network administrator implement only outgoing NAT towards an ISP?

• A. when traffic that originates outside the network must be routed to internal hosts
• B. when traffic that originates inside the network must be routed to internal hosts
• C. when the network has few public IP addresses and many private IP addresses that require outside access
• D. when the network must route UDP traffic

Answer: A

NEW QUESTION 8

When is a routing table entry identified as directly connected?

• A. when the local router is in use as the network default gateway
• B. when the network resides on a remote router that is physically connected to the local router
• C. when an interface on the route is configure with an ip address and enabled
• D. when the route is statically assigned to reach a specific network

Answer: C

NEW QUESTION 9

Which three encapsulation layers in the OSI model are combined into the TCP/IP application layer? (Choose three)

• A. Session
• B. transport
• C. presentation
• D. application
• E. data-link
• F. network

Answer: ACD

NEW QUESTION 10

Which syslog severity level logs information messages?

• A. 2
• B. 6
• C. 4

Answer: B

NEW QUESTION 11

Refer to the exhibit.

If CDP is enabled on all devices and interfaces, which devices will appear in the output of a show cdp neighbors command issued from R2?

• A. R2 and R3
• B. R1 and R3
• C. R3 and S2
• D. R1, S1, S2, and R3
• E. R1, S1, S2, R3, and S3

Answer: C

Explanation:
ACisco device enabled with CDP sends out periodic interface updates to a multicast address in order to make itself known to neighbors. Since it is a layer two protocol, these packets are not routed. So the devices detected would be immediate connected neighbors.

NEW QUESTION 12

For which reason does a DNS client use a DNS server?

• A. to assign an IP address
• B. to verify network connectivity
• C. to resolve an FQDN to an IP address
• D. to resolve an IP address to an FQDN

Answer: C

NEW QUESTION 13

If you are in VLAN 10 and it gets a packet from VLAN 2 with 802.1q enabled, what does it do with the packet?

• A. Drops the packet
• B. forwards it to VLAN 2
• C. configures the port to handle traffic from VLAN 2
• D. adds it to the VLAN database

Answer: A

NEW QUESTION 14

Which two options are the best reasons to use an ipv4 private ip space?

• A. to manage routing overhead
• B. to implement nat
• C. to connect applications
• D. to enable intra-enterprise communication
• E. to conserve global address space

Answer: DE

NEW QUESTION 15

Which metric or metrics does RIP use to determine the routing table metric for a route?

• A. bandwidth and delay
• B. bandwidth and hop count
• C. bandwidth
• D. hop count

Answer: D

NEW QUESTION 16

Refer to the exhibit.

What value should be displayed in Box 1 of the ipconfig output of host A?

• A. 172.18.14.5
• B. 172.18.14.6
• C. 192.168.1.10
• D. 192.168.1.11
• E. 192.168.1.250
• F. 192.168.1.254

Answer: F

NEW QUESTION 17

How many VLANs can be carried across an access port?

• A. 8
• B. 1
• C. 4096
• D. 1024

Answer: B

NEW QUESTION 18

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

Answer: D

NEW QUESTION 19

Drag and drop the descriptions of logging from the left onto the correct logging features or components on the right.
Select and Place:

• A. Mastered
• B. Not Mastered

Answer: A

Explanation:

NEW QUESTION 20

SIMULATION
Lab Simulation – OSPF A sporting goods manufacturer has decided to network three (3) locations to improve efficiency in inventory control. The routers have been named to reflect the location: Boston, Frankfurt, Lancaster. The necessary networking has been completed at each location, and the routers have been configured with single area OSPF as the routing protocol. The Boston router was recently installed but connectivity is not complete because of incomplete routing tables. Identify and correct any problem you see in the configuration.
Note: The OSPF process must be configured to allow interfaces in specific subnets to participate inthe routing process

• A. Mastered
• B. Not Mastered

Answer: A

Explanation:
The question mentioned Boston router was not configured correctly or incomplete so we should check this router first. Click on Host B to access the command line interface (CLI) of Boston router.
Boston>enable(type cisco as its password here)Boston#show running-config

First, remember that the current OSPF Process ID is 2 because we will need it for later configuration. Next notice that in the second “network” command the network and wildcard mask are 192.168.155.0 and 0.0.0.3 which is equivalent to 192.168.155.0 255.255.255.252 in term of subnet mask. Therefore this subnetwork’s range is from 192.168.155.0 to 192.168.155.3 but the ip address of s0/0 interface of Boston router is192.168.155.5 which don’t belong to this range this is the reason why OSPF did not recognize s0 interface of Boston router as a part of area 0. So we need to find a subnetwork that s0 interface belongs to. IP address of S0 interface: 192.168.155.5/30 Subnet mask: /30 = 1111 1111.1111 1111.1111 1111.1111 1100 Increment: 4 Network address (which IP address of s0 interface belongs to):
192.168.155.4 (because 4 * 1 = 4 < 5) Therefore we must use this network instead of 192.168.155.0 network Boston#configure terminalBoston(config)#router ospf 2Boston(config-router)#no network 192.168.155.0
1.1.1.3 area 0Boston(config-router)#network 192.168.155.4 0.0.0.3 area
0Boston(config-router)#endBoston#copy running-config startup-config
Finally, you should issue a ping command from Boston router to Lancaster router to make sure it works well. Boston#ping 192.168.43.1

NEW QUESTION 21

In which two ways does TCP differ from UDP? (Choose two.)

• A. TCP segments are essentially datagrams.
• B. TCP uses broadcast delivery.
• C. TCP provides sequence numbering of packets.
• D. TCP provides synchronized communication.
• E. TCP provides best effort delivery.

Answer: CD

Explanation:
http://www.diffen.com/difference/TCP_vs_UDP
Before two computers can communicate over TCP, they must synchronize their initial sequence numbers (ISN)
TCP uses a sequence number to identify each byte of data. The sequence number identifies the order of the bytes sent from each computer so that the data can be reconstructed in order, regardless of any fragmentation, disordering, or packet loss that may occur during

NEW QUESTION 22

Which feature automatically disables CEF when it is enabled?

• A. RIB
• B. ACL logging
• C. multicast
• D. IP redirects

Answer: B

Explanation:
ACL Logging means to use the "log" or "log-input" parameters at the end of the ACL statements. For example: "access- list 100 deny icmp any any echo reply log-input". In either situation, remember that using either of these two parameters disables CEF switching, which seriously impacts the performance of the router.

NEW QUESTION 23

Which type of cable must you use to connect two device with mdi interfaces?

• A. rolled
• B. crosseover
• C. crossed
• D. straight through

Answer: B

NEW QUESTION 24

Which mode is compatible with Trunk, Access, and desirable ports?

• A. Trunk Ports
• B. Access Ports
• C. Dynamic Auto
• D. Dynamic Desirable

Answer: C

NEW QUESTION 25

A network administrator is troubleshooting the OSPF configuration of routers R1 and R2. The routers cannot establish an adjacency relationship on their common Ethernet link.

The graphic shows the output of the show ip ospf interface e0 command for routers R1 and R2. Based on the information in the graphic, what is the cause of this problem?

• A. The OSPF area is not configured properly.
• B. The priority on R1 should be set higher.
• C. The cost on R1 should be set higher.
• D. The hello and dead timers are not configured properly.
• E. A backup designated router needs to be added to the network.
• F. The OSPF process ID numbers must match.

Answer: D

Explanation:
In OSPF, the hello and dead intervals must match and here we can see the hello interval is set to 5 on R1 and 10 on R2. The dead interval is also set to 20 on R1 but it is 40 on R2.

NEW QUESTION 26

OSPF is configured using default classful addressing. With all routers and interfaces operational, how many networks will be in the routing table of R1 that are indicated to be learned by OSPF?

• A. 2
• B. 3
• C. 4
• D. 5
• E. 6
• F. 7

Answer: C

Explanation:
Although OSPF is configured using default classful addressing but OSPF is a link-state routing protocol so it will always send the subnet mask of each network in their advertised routes. Therefore R1 will learn the the complete subnets. Four networks list below will be in the routing table of R1:+ 172.16.2.64/30+ 172.16.2.228/30+ 172.16.2.232/30+ 172.16.3.0/24
Note: Other networks will be learned as “Directly connected” networks (marked with letter “C”)

NEW QUESTION 27

What does RIPv2 use to determine the best route?

• A. Hop count
• B. Administrative distance
• C. Bandwidth

Answer: A

NEW QUESTION 28

Which table displays the MAC addresses that are learned on a switch?

• A. FIB
• B. ARP
• C. TCAM
• D. CAM

Answer: D

Explanation:
The table is built by recording the source address and inbound port of all frames. As frames arrive on switch ports, the source MAC addresses are learned and recorded in the CAM table. The port of arrival and the VLAN are both recorded in the table, along with a timestamp. If a MAC address learned on one switch port has moved to a different port, the MAC address and timestamp are recorded for the most recent arrival port. Then, the previous entry is deleted. If a MAC address is found already present in the table for the correct arrival port, only its timestamp is updated.

NEW QUESTION 29

Which name describes an IPV6 host-enable tunneling technique that uses IPV4 UDP,does not require dedicated gateway tunnels,and can pass through existing IPV4 NAT gateways?

• A. dual stack XX
• B. dynamic
• C. Teredo
• D. Manual 6to4

Answer: C

NEW QUESTION 30

A network administrator is trying to add a new router into an established OSPF network. The networks attached to the new router do not appear in the routing tables of the other OSPF routers. Given the information in the partial configuration shown below, what configuration error is causing this problem?
Router(config)# router ospf 1
Router(config-router)# network 10.0.0.0 255.0.0.0 area 0

• A. The process id is configured improperly.
• B. The OSPF area is configured improperly.
• C. The network wildcard mask is configured improperly.
• D. The network number is configured improperly.
• E. The AS is configured improperly.
• F. The network subnet mask is configured improperly.

Answer: C

Explanation:
When configuring OSPF, the mask used for the network statement is a wildcard mask similar to an access list. In this specific example, the correct syntax would have been “network 10.0.0.0 0.0.0.255 area 0.”

NEW QUESTION 31
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