1 What are two characteristics of clients in data networks? (Choose two.)

use daemons
* initiate data exchanges
are repositories of data
* may upload data to servers
listen for requests from servers

2 What is the role of the OSI application layer?

provides segmentation of data
provides encryption and conversion of data
* provides the interface between the applications on either end of the network
provides control of all the data flowing between the source and destination devices

3 A small home network has been installed to interconnect three computers together for gaming and file sharing. What two properties represent this network type? (Choose two.)

* User accounts are centralized.
* Security is difficult to enforce.
Specialized operating system software is required.
File permissions are controlled by a single computer.
A computer that responds to a file sharing request is functioning as a server.

4 How does the application layer on a server usually process multiple client request for services?

ceases all connections to the service
denies multiple connections to a single daemon
suspends the current connection to allow the new connection
* uses support from lower layer functions to distinguish between connections to the service

5 Which application layer protocols correctly match a corresponding function? (Choose two.)

* DNS dynamically allocates IP addresses to hosts
HTTP transfers data from a web server to a client
POP delivers email from the client to the server email server
SMTP supports file sharing
* Telnet provides a virtual connection for remote access

6 Which statements are correct concerning the role of the MTA in handling email? (Choose three.)

routes email to the MDA on other servers
* receives email from the client's MUA
receives email via the POP3 protocol
* passes email to the MDA for final delivery
* uses SMTP to route email between servers
delivers email to clients via the POP3 protocol

7

Refer to the exhibit. What is the destination port for the communication that is represented on line 5?

* 80
1261
15533
3912
65520

8 As compared to SSH, what is the primary disadvantage of telnet?

not widely available
* does not support encryption
consumes more network bandwidth
does not support authentication

9 What are two characteristics of peer-to-peer networks? (Choose two.)

scalable
one way data flow
* decentralized resources
centralized user accounts
* resource sharing without a dedicated server

10 What application layer protocol is commonly used to support for file transfers between a client and a server?

HTML
HTTP
* FTP
Telnet

11 What are two forms of application layer software? (Choose two.)

* applications
dialogs
requests
services
* syntax

12 What three protocols operate at the Application layer of the OSI model? (Choose three.)

ARP
* DNS
PPP
* SMTP
* POP
ICMP

13 What is the automated service that matches resource names with the required IP address?

HTTP
SSH
FQDN
* DNS
Telnet
SMTP

14 Which layer of the OSI model supplies services that allow user to interface with the network?

physical
session
network
presentation
* application
transport

15 What application layer protocol describes the services that are used for file sharing in Microsoft networks?

DHCP
DNS
* SMB
SMTP
Telnet

16 Which two protocols are used to control the transfer of web resources from a web server to a client browser? (Choose two.)

ASP
FTP
HTML
* HTTP
* HTTPS
IP

17 A network administrator is designing a network for a new branch office of twenty-five users. What are the advantages of using a client-server model? (Choose two.)

* centralized administration
does not require specialized software
* security is easier to enforce
lower cost implementation
provides a single point of failure

18 Which email components are used to forward mail between servers? (Choose two.)

* MDA
IMAP
* MTA
POP
SMTP
MUA

19 What are three properties of peer-to-peer applications? (Choose three.)

* acts as both a client and server within the same communication
requires centralized account administration
* hybrid mode includes a centralized directory of files
can be used in client-server networks
* does not require specialized software
centralized authentication is required

20 What is the purpose of resource records in DNS?

temporarily holds resolved entries
* used by the server to resolve names
sent by the client to during a query
passes authentication information between the server and client