Cisco Chapter 3

1.

1 point

Which statement is correct about network protocols?

They all function in the network access layer of TCP/IP.

Network protocols define the type of hardware that is used and how it is mounted in racks.

They are only required for exchange of messages between devices on remote networks.

They define how messages are exchanged between the source and the destination.

2.

1 point

Which three layers of the OSI model are comparable in function to the application layer of the TCP/IP model? (Choose three.)

data link

physical

presentation

transport

network

session

application

3.

1 point

What is a benefit of using a layered model for network communications?

fostering competition among device and software vendors by enforcing the compatibility of their products

avoiding possible incompatibility issues by using a common set of developing tools

enhancing network transmission performance by defining targets for each layer

simplifying protocol development by limiting every layer to one function

4.

1 point

A computer in a given network is communicating with a specific group of computers. What type of communication is this?

multicast

ARP

unicast

broadcast

HTTP

5.

1 point

Which statement is true about the TCP/IP and OSI models?

The TCP/IP transport layer and OSI Layer 4 provide similar services and functions.

The TCP/IP network access layer has similar functions to the OSI network layer.

The first three OSI layers describe general services that are also provided by the TCP/IP internet layer.

The OSI Layer 7 and the TCP/IP application layer provide identical functions.

6.

1 point

What is the general term that is used to describe a piece of data at any layer of a networking model?

frame

protocol data unit

segment

packet

7.

1 point

If the default gateway is configured incorrectly on the host, what is the impact on communications?

The host can communicate with other hosts on the local network, but is unable to communicate with hosts on remote networks.

The host is unable to communicate on the local network.

There is no impact on communications.

The host can communicate with other hosts on remote networks, but is unable to communicate with hosts on the local network.

8.

1 point

What three application layer protocols are part of the TCP/IP protocol suite? (Choose three.)

PPP

DHCP

DNS

FTP

NAT

ARP

9.

1 point

What is a function of Layer 4 of the OSI model?

to describe the ordered and reliable delivery of data between source and destination

to apply framing information to the packet, based on the attached media

to specify the packet type to be used by the communications

to represent data to the user, including encoding and dialog control

10.

1 point

What will happen if the default gateway address is incorrectly configured on a host?

The switch will not forward packets initiated by the host.

A ping from the host to 127.0.0.1 would not be successful.

The host will have to use ARP to determine the correct address of the default gateway.

The host cannot communicate with other hosts in the local network.

The host cannot communicate with hosts in other networks.

11.

1 point

Which IEEE standard enables a wireless NIC to connect to a wireless AP that is made by a different manufacturer?

802.11

802.1

802.3

802.2

12.

1 point

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?

TCP

DHCP

ARP

HTTP

13.

1 point

Which protocol is responsible for controlling the size and rate of the HTTP messages exchanged between server and client?

TCP

ARP

HTTP

DHCP

14.

1 point

Which characteristic describes the default gateway of a host computer?

the logical address assigned to the switch interface connected to the router

the logical address of the router interface on the same network as the host computer

the physical address of the switch interface connected to the host computer

the physical address of the router interface on the same network as the host computer

15.

1 point

A web client is sending a request for a webpage to a web server. From the perspective of the client, what is the correct order of the protocol stack that is used to prepare the request for transmission?

HTTP, TCP, IP, Ethernet

Ethernet, TCP, IP, HTTP

HTTP, IP, TCP, Ethernet

Ethernet, IP, TCP, HTTP

16.

1 point

What process is used to place one message inside another message for transfer from the source to the destination?

Access Control

Flow Control

Encapsulation

Decoding

17.

1 point

Which address does a NIC use when deciding whether to accept a frame?

source IP address

source Ethernet address

destination IP address

destination MAC address

source MAC address

18.

1 point

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

flow control

encapsulation

access method

response timeout

19.

1 point

Message Encoding
Message Encapsulation
Message Sizing

the process of placing one message format inside another message format the process of converting information from one format into another acceptable for transmission the process of breaking up a long message into individual pieces before being sent over the network

the process of breaking up a long message into individual pieces before being sent over the network the process of placing one message format inside another message format the process of converting information from one format into another acceptable for transmission

the process of converting information from one format into another acceptable for transmission the process of placing one message format inside another message format the process of breaking up a long message into individual pieces before being sent over the network

the process of converting information from one format into another acceptable for transmission the process of breaking up a long message into individual pieces before being sent over the network the process of placing one message format inside another message format

20.

1 point

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

data link layer

transport layer

network layer

physical layer

21.

1 point

What is an advantage of using standards to develop and implement protocols?

Different manufacturers are free to apply different requirements when implementing a protocol.

Products from different manufacturers can interoperate successfully.

Standards provide flexibility for manufacturers to create devices that comply with unique requirements.

A particular protocol can only be implemented by one manufacturer.

22.

1 point

Which command is used to remove only VLAN 20 from a switch?

no switchport access vlan 20

no vlan 20

delete flash:vlan.dat

delete vlan.dat

23.

1 point

Refer to the exhibit. PC-A and PC-B are both in VLAN 60. PC-A is unable to communicate with PC-B. What is the problem?

The native VLAN should be VLAN 60.

The VLAN that is used by PC-A is not in the list of allowed VLANs on the trunk.

The trunk has been configured with the switchport nonegotiate command.

The native VLAN is being pruned from the link.

24.

1 point

What type of communication will send a message to all devices on a local area network?

Unicast

Broadcast

Multicast

Allcast

25.

1 point

Which address provides a unique host address for data communications at the internet layer?

logical address

physical address

Layer 2 address

data-link address

26.

1 point

A user sends an HTTP request to a web server on a remote network. During encapsulation for this request, what information is added to the address field of a frame to indicate the destination?

the MAC address of the destination host

the IP address of the default gateway

the MAC address of the default gateway

the IP address of the destination host

27.

1 point

What statement describes the function of the Address Resolution Protocol?

ARP is used to discover the IP address of any host on the local network.

ARP is used to discover the MAC address of any host on a different network.

ARP is used to discover the IP address of any host on a different network.

ARP is used to discover the MAC address of any host on the local network

28.

1 point

Which protocol is used by a computer to find the MAC address of the default gateway on an Ethernet network?

TCP

DHCP

UDP

ARP

29.

1 point

Which statement accurately describes a TCP/IP encapsulation process when a PC is sending data to the network?

Segments are sent from the transport layer to the internet layer.

Packets are sent from the network access layer to the transport layer.

Data is sent from the internet layer to the network access layer.

Frames are sent from the network access layer to the internet layer.

30.

1 point

What is an advantage of network devices using open standard protocols?

A client host and a server running different operating systems can successfully exchange data.

Competition and innovation are limited to specific types of products.

Network communications is confined to data transfers between devices from the same vendor.

Internet access can be controlled by a single ISP in each market.

31.

1 point

What are proprietary protocols?

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

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

protocols that can be freely used by any organization or vendor

protocols developed by private organizations to operate on any vendor hardware

32.

1 point

Which PDU is processed when a host computer is de-encapsulating a message at the transport layer of the TCP/IP model?

Segment

Bits

Frame

Packet

33.

1 point

Which PDU format is used when bits are received from the network medium by the NIC of a host?

packet

frame

segment

file

34.

1 point

Open the PT Activity. Perform the tasks in the activity instructions and then answer the question.
Based on the configured network, what IP address would PC1 and PC2 use as their default gateway?

10.1.1.1

192.168.1.1

172.16.1.1

192.168.1.10

192.168.1.2