1. Refer to the exhibit. What is wrong with the displayed termination?

The wires are too thick for the connector that is used.

The untwisted length of each wire is too long.

The woven copper braid should not have been removed.

The wrong type of connector is being used.

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

They prevent crosstalk from causing interference on the connection.

They increase the speed at which the data can travel.

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

They allow for full-duplex connectivity.

1. At which layer of the OSI model would a logical address be encapsulated?

network layer

data link layer

physical layer

transport layer

2. What are proprietary protocols?

protocols developed by private organizations to operate on any vendor hardware

protocols developed by organizations who have control over their definition and operation

a collection of protocols known as the TCP/IP protocol suite

protocols that can be freely used by any organization or vendor

1. While trying to solve a network issue, a technician made multiple changes to the current router configuration file. The changes did not solve the problem and were not saved. What action can the technician take to discard the changes and work with the file in NVRAM?

Close and reopen the terminal emulation software.

Issue the copy startup-config running-config command.

Issue the reload command without saving the running configuration.

Delete the vlan.dat file and reboot the device.

2. An administrator is configuring a switch console port with a password. In what order will the administrator travel through the IOS modes of operation in order to reach the mode in which the configuration commands will be entered? (Not all options are used.)

privileged EXEC mode -> second mode

line configuration mode -> final mode

global configuration mode -> third mode

user EXEC mode -> first mode

1. Fill in the blank.

A __converged__network is capable of delivering voice, video, text, and graphics over the same communication channels.

2. What type of network must a home user access in order to do online shopping?

An extranet

a local area network

an intranet

the Internet

1. Which field in an IPv4 packet header will typically stay the same during its transmission?

Flag

Time-to-Live

Packet Length

Destination Address

2. What is the purpose of ICMP messages?

to inform routers about network topology changes

to ensure the delivery of an IP packet

to provide feedback of IP packet transmissions

to monitor the process of a domain name to IP address resolution

1.

Refer to the exhibit. What will be the result of entering this configuration the next time a network administrator connects a console cable to the router and no additional commands have been entered?

The administrator will be required to enter Cisco123.

The administrator will be required to enter Cisco234.

The administrator will be required to enter Cisco789.

The administrator will be presented with the R1> prompt.

2. Why are port numbers included in the TCP header of a segment?

to indicate the correct router interface that should be used to forward a segment

to identify which switch ports should receive or forward the segment

to determine which Layer 3 protocol should be used to encapsulate the data

to enable a receiving host to forward the data to the appropriate application

to allow the receiving host to assemble the packet in the proper order

1. What is the purpose of issuing the commands cd nvram: then dir at the privilege exec mode of a router?

to clear the content of the NVRAM

to direct all new files to the NVRAM

to list the content of the NVRAM

to copy the directories from the NVRAM

2. Fill in the blank.

...VoIP...defines the protocols and technologies that implement the transmission of voice data over an IP network.

1. Which three layers of the OSI model provide similar network services to those provided by the application layer of the TCP/IP model? (Choose three.)

physical layer

session layer

transport layer

application layer

presentation layer

data link layer

2.

Fill in the blank.

Refer to the exhibit. What command was used to resolve a given host name by querying the name servers? ..NSLOOKUP

1. How many host addresses are available on the network 172.16.128.0 with a subnet mask of 255.255.252.0?

510

512

1022

1024

2046

2048

2. How many usable host addresses are there in the subnet 192.168.1.32/27?

32

30

64

16

62

1. When will a router drop a traceroute packet?

when the router receives an ICMP Time Exceeded message

when the RTT value reaches zero

when the host responds with an ICMP Echo Reply message

when the value in the TTL field reaches zero

when the values of both the Echo Request and Echo Reply messages reach zero

2. Fill in the blank.

What is the decimal equivalent of the hex number 0x3F?...63