CCNA 1 - Chapter 3 (Part 1)

created by Karen.ura… on 17 Dec 13, enabled by Lou

High Tech

Medium level (66% of success) 23 questions - 667 players

Chapter 3 (Part 1)

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

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

Simplifying protocol development by limiting every layer to one function

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

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

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

Protocol data unit

Packet

Frame

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

Broadcast

Multicast

Unicast

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

Physical address

Layer 2 address

Logical address

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

Source Ethernet address

Destination MAC address

Source IP address

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 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

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

ARP

TCP

DHCP

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

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

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

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

Packet

Frame

Segment

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

802. 11

802. 3

802. 1

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 developed by private organizations to operate on any vendor hardware

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

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

The host is unable to communicate on the local network.

There is no impact on communications.

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

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

Phsical layer

Network layer

Data link layer

This organization is responsible for overseeing and managing IP address allocation, domain name management, and protocol identifiers.

IANA

ISOC

IEEE

This organization is the largest developer of international standards in the world for a wide variety of products and services. It is known for its Open Systems Interconnection (OSI) reference model.

IANA

IEEE

ISO

This organization promotes the open development, evolution and use of the Internet throughout the world.

ISOC

ISO

IANA

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

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

To specify the packet type to be used by the communication

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

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?

Ethernet, IP, TCP, HTTP

HTTP, TCP, IP, Ethernet

HTTP, IP, TCP, Ethernet

What statement describes the function of the ARP?

ARP is used to discover the MAC 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 the local network

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

Access method

Flow control

Response timeout

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