Final1.CCNA4.0.upload.by.kakalos 3.pdf

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1
A host is transmitting a video over the network. How does the transport layer allow this host to
use multiple applications to transmit other data at the same time as the video transmission?
It uses error control mechanisms.
It uses a connectionless protocol only for multiple simultaneous transmissions.
It uses multiple Layer 2 source addresses.
It uses multiple port numbers.
2
Refer to the exhibit. Each media link is labeled. What type of cable should be used to connect the different devices?
Connection 1 - rollover cable Connection 2 - straight-through cable Connection 3 - crossover cable
Connection 1 - straight-through cable Connection 2 - crossover cable Connection 3 - rollover cable
Connection 1 - crossover cable Connection 2 - rollover cable Connection 3 - straight-through cable
Connection 1 - crossover cable Connection 2 - straight-through cable Connection 3 - rollover cable
Connection 1 - straight-through cable Connection 2 - straight-through cable Connection 3 - straight-through cable
3
Which OSI layer uses a connection -oriented protocol to ensure reliable delivery of data?
application layer
presentation layer
session layer
transport layer
4
Which three statements are true about network layer addressing? (Choose three.)
It uniquely identifies each host.
It assists in forwarding packets across internetworks.
It uses a logical 32-bit IPv4 address.
It is not a configurable address.
It is a physical address.
It identifies the host from the first part of the address.
5
Refer to the exhibit. A PC is communicating with
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another PC on a remote network.
The two networks are connected by three routers. Which action will help to identify the path between the hosts?
Use the ipconfig command at the host.
Use the ipconfig/all command at the destination.
Use the tracert command at the host.
Use the ping command at the destination.
6
Which two types of media are useful for connecting two devices separated by a distance of 500 meters? (Choose two.)
10 BASE-T
1000 BASE-TX
10 BASE-2
1000 BASE LX
1000 BASE-SX
7
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Refer to the exhibit. A technician uses the nslookup command on the PC and views the output that is displayed in the exhibit. What is
the IP address of the primary domain name server used by the host?
10.10.10.32
192.168.1.5
192.168.1.99
192.168.2.100
8
Refer to the exhibit. The diagram represents the process of sending e -mail between clients. Which
list correctly identifies the component or protocol used at each numbered stage of the diagram?
1.MUA 2.MDA 3.MTA 4.SMTP 5.MTA 6.POP 7.MDA 8.MUA
1.MUA 2.POP 3.MDA 4.SMTP 5.MTA 6.MDA 7.SMTP 8.MUA
1.MUA 2.POP 3.SMTP 4.MDA 5.MTA 6.SMTP 7.POP 8.MUA
1.MUA 2.SMTP 3.MTA 4.SMTP 5.MTA 6.MDA 7.POP 8.MUA
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9
Which three statements are true about transport layer protocols? (Choose three.)
TCP and UDP manage communication between multiple applications.
TCP retransmits the packets for which the acknowledgment is not received.
TCP acknowledges received data.
UDP exchanges frames between the nodes of the network.
TCP has no mechanism to acknowledge transmission errors.
UDP uses windowing and sequencing to provide reliable transfer of data.
10
Which OSI layer offers ordered data reconstruction services?
application layer
network layer
presentation layer
session layer
transport layer
11
Refer to the exhibit. Host C is able to ping 127.0.0.1 successfully, but is unable to communicate with hosts A and B in the
organization. What is the likely cause of the problem?
Hosts A and B are not on the same subnet as host C.
The IP addresses on the router serial interfaces are wrong.
The subnet mask on host C is improperly configured.
The FastEthernet interface fa0/0 of router 1 is wrongly configured.
12
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Refer to the exhibit. A host is connected to hub 1. Which combination of IP address, subnet mask, and default gateway can allow
this host to function in the network?
IP address: 172.16.31.36 Subnet mask: 255.255.255.240 Default gateway: 172.16.31.35
IP address: 172.16.31.63 Subnet mask: 255.255.255.224 Default gateway: 172.16.31.35
IP address: 172.16.31.29 Subnet mask: 255.255.255.248 Default gateway: 172.16.31.35
IP address: 172.16.31.32 Subnet mask: 255.255.255.224 Default gateway: 172.16.31.35
IP address: 172.16.31.29 Subnet mask: 255.255.255.240 Default gateway: 172.16.30.1
IP address: 172.16.31.37 Subnet mask: 255.255.255.224 Default gateway: 17 2.16.31.35
13
An organization wants to create a subnet of the IP network 172.16.0.0. This subnet will accommodate 1000 hosts. Which subnet mask should
be assigned to this network?
255.255.0.0
255.255.248.0
255.255.252.0
255.255.254.0
255.255.255.0
255.255.255.128
14
What are three characteristics of CSMA/CD? (Choose three.)
It monitors the media for presence of a data signal.
After detecting a collision, hosts can resume transmission after a random timer has expired.
A jam signal is used to ensure that all hosts are aware that a collision has occurred.
Devices can be configured with a higher transmission priority.
Data is transmitted only when the data signal is present.
It uses a token system to avoid collisions.
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