1. A host device sends a data packet to a web server via the HTTP protocol. What is used by the transport layer to pass the data stream to the proper application on the server?

sequence number

acknowledgment

source port number

destination port number

2. What does a client application select for a TCP or UDP source port number?

a random value in the well-known port range

a random value in the range of the registered ports

a predefined value in the well-known port range

a predefined value in the range of the registered ports

1. Which two commands can be used on a Windows host to display the routing table? (Choose two.)

netstat -s

route print

show ip route

netstat -r

tracert

2. Which statement about router interfaces is true?

Router LAN interfaces are not activated by default, but router WAN interfaces are.

Once the no shutdown command is given, a router interface is active and operational.

Commands that apply an IP address and subnet mask to an interface are entered in global configuration mode.

A configured and activated router interface must be connected to another device in order to operate.

1.

A store-and-forward switch always stores the entire frame before forwarding, and checks its CRC and frame length. A cut-through switch can forward frames before receiving the destination address field, thus presenting less latency than a store-and-forward switch. Because the frame can begin to be forwarded before it is completely received, the switch may transmit a corrupt or runt frame. All forwarding methods require a Layer 2 switch to forward broadcast frames.

2. Open the PT Activity. Perform the tasks in the activity instruction and then answer the question.

What destination address will PC1 include in the destination address field of the Ethernet frame that it sends to PC2?

192.168.0.17

192.168.0.34

0030.a3e5.0401

00e0.b0be.8014

0007.ec35.a5c6

1. Which layer of the OSI model is responsible for specifying the encapsulation method used for specific types of media?

application

transport

data link

physical

2. Why are two strands of fiber used for a single fiber optic connection?

The two strands allow the data to travel for longer distances without degrading.

They prevent crosstalk from causing interference on the connection.

They increase the speed at which the data can travel.

They allow for full-duplex connectivity.

1. A user is viewing an HTML document located on a web server. What protocol segments the messages and manages the segments in the individual conversation between the web server and the web client?

DHCP

TCP

HTTP

ARP

2. What method can be used by two computers to ensure that packets are not dropped because too much data is being sent too quickly?

encapsulation

flow control

access method

response timeout

1. A new network administrator has been asked to enter a banner message on a Cisco device. What is the fastest way a network administrator could test whether the banner is properly configured?

Reboot the device.

Enter CTRL-Z at the privileged mode prompt.

Exit global configuration mode.

Power cycle the device.

Exit privileged EXEC mode and press Enter.

2. Why would a Layer 2 switch need an IP address?

to enable the switch to send broadcast frames to attached PCs

to enable the switch to function as a default gateway

to enable the switch to be managed remotely

to enable the switch to receive frames from attached PCs

1. What two criteria are used to help select network media? (Choose two.)

the types of data that need to be prioritized

the cost of the end devices utilized in the network

the distance the media can successfully carry a signal

the number of intermediary devices installed in the network

the environment where the media is to be installed

2. Which device performs the function of determining the path that messages should take through internetworks?

a router

a firewall

a web server

a DSL modem

1.

Refer to the exhibit. Which statement is true based on the exhibited information?

The router is using a link-state routing protocol.

The router will get routing updates on the FastEthernet0/0 interface.

The router will not forward routing updates from the Serial0/0/0 interface.

The network for Fa0/1 will be included in the routing updates that are sent from this router.

2. Which two tasks should be part of a disaster recovery plan? (Choose two.)

backing up data

installing intrusion detection systems

protecting information from malicious attack

ensuring that traffic from clients to servers is encrypted

identifying offsite locations where services and operations can be moved

1.

Refer to the exhibit. R1 and R2 are adjacent routers both running RIP. All interfaces on both routers are correctly configured and operational. Both routers are configured to include all connected interfaces in routing updates. R2 is not showing any routes from R1 in the routing table. What is the likely cause?

The adjacent interfaces are passive.

The distance of 120 exceeds 15 hops.

R2 will not accept version 1 updates from R1.

Routes are being summarized by R1 but not by R2.

2.

Refer to the exhibit. Two routers are unable to establish an adjacency. What is the possible cause for this?

The two routers are connected on a multiaccess network.

The hello and dead intervals are different on the two routers.

They have different OSPF router IDs.

They have different process IDs.

1. An administrator is unable to receive e-mail. While troubleshooting the problem, the administrator is able to ping the local mail server IP address successfully from a remote network and can successfully resolve the mail server name to an IP address via the use of the nslookup command. At what OSI layer is the problem most likely to be found?

physical layer

data link layer

network layer

application layer

2. When implementing a dynamic ACL, why is it necessary to include an extended ACL as part of the configuration process?

to disable the router vty lines

to reduce the dynamic ACL filtering load

to override any previous ACL that might be applied to the router

to provide a controlled situation of allowing traffic through a router