1. Which of the following descriptions are true regarding the running connections on a Cisco router? (Choose three.)
They are
non-network connections.
They are used
to connect the router to the rest of the production network.
They are
synchronous serial ports.
They are used
for initial router configuration.
They are
asynchronous serial ports.
They are
accessed using their assigned IP address.
2. Which of
the following describes the purpose of a WAN?
connects
peripherals in a single location.
connects
multiple networks in a single building.
provides
connectivity on a LAN.
provides
connectivity over a large geographic area.
3. Which of the following devices are used in the production of a WAN?
(Choose three.)
hubs.
routers. communication servers.
transceivers.
modems.
multi-port repeaters.
hubs.
routers. communication servers.
transceivers.
modems.
multi-port repeaters.
4 Which basic components do a router and a
standard desktop PC have in common?
(Choose three.)
CPU. hard drive.
input/output interfaces. keyboard.
monitor.
system bus.
CPU. hard drive.
input/output interfaces. keyboard.
monitor.
system bus.
5 What is the role of QoS in a converged network?
Ensures that all traffic above available bandwidth levels is dropped
Establishes delivery priorities for different types of communication in a network
Determines precise priorities for all types of network communication
Allows unused bandwidth to be shared by other organizations within the network
6 Which term describes a common platform for diverse communication types?
Scalability
Convergence
Fault tolerance
Quality of service
7Copper cables and fiber-optic cables are two types of network ?
WAN and LAN
8 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. Network evaluation .
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. Network evaluation .
9 Which statements correctly identify the role of
intermediary devices in the network? (Choose three.)
determine pathways for data
initiate data communications
retime and retransmit data signals
originate the flow of data
manage data flows
final termination point for data flow
10 Select the
statements that are correct concerning network protocols. (Choose three.)
define the structure of layer specific PDU’s
dictate how to accomplish layer functions
outline the functions necessary for communications between
layers
limit the need for hardware compatibility
require layer dependent encapsulations
eliminate standardization among vendors
11 What are two functions of encapsulation? (Choose two.)tracks delay between end devices
enables consistent network paths for communication
allows modification of the original data before transmission
identifies pieces of data as part of the same communication
ensures that data pieces can be directed to the correct receiving end device
12 What is a primary function of the trailer information added by the data link layer encapsulation?
supports error detection
ensures ordered arrival of data
provides delivery to correct destination
identifies the devices on the local network
assists intermediary devices with processing and path selection.
13 Which two layers of the OSI model have the equal functions as the TCP/IP model Network Access Layer? (Choose two.)
Network
Transport
Physical
Data Link
Session
14 What is a PDU?
corruption of a frame during transmission
data reassembled at the destination
retransmitted packets due to lost communication
a layer specific encapsulation
15 Which characteristic exact refers to end devices in a network?
manage data flows
originate data flow
retime and retransmit data signals
determine pathways for data
16 Which three statements best describe a Local Area Network
(LAN)? (Choose three.)
A LAN is usually in a single geographical area.
The network is administered by a single organization.
The connection between segments in the LAN is usually
through a leased connection.
The security and access control of the network are
controlled by a service provider.
A LAN provides network services and access to applications
for users within a common organization.
Each end of the network is generally connected to a
Telecommunication Service Provider (TSP).
17 What is the
primary purpose of Layer 4 port task?
to identify devices on the local media
to identify the hops between source and destination
to identify to the intermediary devices the best path
through the network
to identify the source and destination end devices that are
communicating
to identify the processes or services that are communicating
within the end devices
18 What device is
considered an intermediary device?
file server
IP phone
laptop
printer
switch
19 Which layer encapsulates the segment into packets?
physical
data link
network
transport
20 What can be identified by examining the network layer
header?
the destination device on the local media
the destination host address
the bits that will be transferred over the media
the source application or process creating the data.
21 During the encapsulation process, what occurs at the
data link layer?
No address is added.
The logical address is added.
The physical address is added.
The process port number is added.
22 What is the purpose of the TCP/IP Network Access layer?
path determination and packet switching
data presentation
reliability, flow control, and error detection
network media control
the division of segments into packets
23 What is the proper order of the layers of the OSI model
from the highest layer to the lowest layer?
physical, network, application, data link, presentation,
session, transport
application, physical, session, transport, network, data
link, presentation
application, presentation, physical, session, data link,
transport, network
application, presentation, session, transport, network, data
link, physical
presentation, data link, session, transport, network,
physical, application
24 Refer to the exhibit. What type of network is shown?
WAN
MAN
LAN
WLAN
25 Refer to the exhibit. Which three labels correctly identify
the network types for the network segments that are shown? (Choose three.)
Network A — WANNetwork B — WAN
Network C — LAN
Network B — MAN
Network C — WAN
Network A – LAN
26 What application
layer protocol is commonly used to maintain for file transfers between a client
and a server?
HTML
HTTP
FTP
Telnet
27 What are two forms
of application layer software? (Choose two.)
Applications
dialogs
requests
services
syntax
28 A network
administrator is design 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
29 What is the purpose of reserve 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
30 What is the
automated service that matches resource names with the required IP address?
HTTP
SSH
FQDN
DNS
Telnet
SMTP
31 What three protocols operate at the Application layer of
the OSI model? (Choose three.)
ARP
DNS
PPP
SMTP
POP
ICMP
32 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.
requires a direct physical connection between devices.
centralized authentication is required.
33 Which application layer protocols correctly match a
corresponding function? (Choose two.)
DNS dynamically allocate 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
34 Which email components are used to forward mail between
servers? (Choose two.)
MDA
IMAP
MTA
POP
SMTP
MUA
35 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
36 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
37 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
38 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
39 What application
layer protocol describes the services that are used for file sharing in
Microsoft networks?
DHCP
DNS
SMB
SMTP
Telnet
40 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
41 What is the job of
the OSI application layer?
Provides segmentation of data
Provides encryption and exchange of data
Provides the interface between the applications on either
end of the network
Provides manage of all the data flowing between the source
and destination devices
42 How does the application layer on a server generally process
multiple client request for services?
Ceases all connections to the service
Denies multiple connections to a single daemon
Suspends the present connection to allow the new connection
Uses support from lower layer functions to distinguish
between connections to the service.
43 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.
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.
44 Several Ethernet hosts on a LAN need the gateway services of a Cisco 2500 series router. Which of the following would be needed to physically connect a router to all of the hosts on the LAN? (Choose two.)
a crossover cable between the transceiver on a router and a switch.
a crossover cables between a switch and hosts on a LAN.
a straight-through cable between the auxiliary port on a router and a switch.
a rollover cable between the console port on a router and a switch.
straight-through cables between a switch and hosts on a LAN.
a straight-through cable between the transceiver on a router and a switch.
a crossover cable between the transceiver on a router and a switch.
a crossover cables between a switch and hosts on a LAN.
a straight-through cable between the auxiliary port on a router and a switch.
a rollover cable between the console port on a router and a switch.
straight-through cables between a switch and hosts on a LAN.
a straight-through cable between the transceiver on a router and a switch.
45 After a web browser makes a request to a web server that
is listening to the standard port, what will be the source port number in the
TCP header of the response from the server?
13
53
80
1024
1728
46 Which information is found in both the TCP and UDP header
information?
Sequencing
Flow control
Acknowledgments
Source and destination
47 Which is an important characteristic of UDP?
Acknowledgement of data delivery
Minimal delays in data delivery
High reliability of data delivery
Same order data delivery
48 Why is flow
control used for TCP data transfer?
To synchronize equipment speed for sent data
To synchronize and order sequence numbers so data is sent in
complete numerical order
To prevent the receiver from being overwhelmed by incoming
data
To synchronize window size on the server
To simplify data transfer to multiple hosts
49 During a TCP communication session, if the packets arrive
to the destination out of order, what will happen to the original message?
The packets will not be delivered.
The packets will be retransmitted from the source.
The packets will be delivered and reassembled at the
destination.
The packets will be delivered and not reassembled at the
destination.
50 With TCP/IP data encapsulation, which range of port
numbers identifies all well-known applications?
0 to 255
256 to 1022
0 to 1023
1024 to 2047
49153 to 65535.
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