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CCNA QUESTIONS : PART 5

If a router has four interfaces and each interface is connected to four switches, how many
broadcast domains are present on the router?

 

1

 2

 4

 8

SHOW ANSWER

 

Which of the following correctlydescribe steps in the OSI data encapsulation process? (Choose
two.)

 

The transport layer divides a data stream into segments and may add reliability and flow control information.

 The data link layer adds physical source and destination addresses and an FCS to the segment.

 Packets are created when the network layer encapsulates a frame with source and destination host addresses and
protocol-related control information.

 Packets are created when the network layer adds Layer 3 addresses and control information to a segment.

 The presentation layer translates bits into voltages for transmission across the physical link.

SHOW ANSWER

What are three characteristics of the TCP protocol? (Choose three.)

 

It uses a single SYN-ACK message to establish a connection.


The connection is established before data is transmitted.


 It ensures that all data is transmitted and received by the remote device.


It supports significantly higher transmission speeds than UDP.


It requires applications to determine when data packets must be retransmitted.


It uses separate SYN and ACK messages to establish a connection.

SHOW ANSWER

Which two statements about wireless LAN controllers are true? (Choose two.)

 

They can simplify the management and deployment of wireless LANs.

 They rely on external firewalls for WLAN security.

 They are best suited to smaller wireless networks.

 They must be configured through a GUI over HTTP or HTTPS.

They can manage mobility policies at a systemwide level.

SHOW ANSWER

What is true about Ethernet? (Choose Two.)

 

802.2 Protocol

802.3 Protocol

10BaseT half-duplex

 CSMA/CD Stops transmitting when congestion occurs

CSMA/CA Stops transmitting when congestion occurs

SHOW ANSWER

What feature uses a random time to re-sent a frame?

 

CSMA/CA

ANOTHER OPTION

ANOTHER OPTION

 CSMA/CD

SHOW ANSWER

If there are 3 hosts connected in one port of a switch and two other hosts connected in another
port, how many collision domains are present on the router?

 

5

2

 3

 4

SHOW ANSWER

What are two reasons that duplex mismatches can be difficult to diagnose? (Choose two.)

 

The interface displays a connected (up/up) state even when the duplex settings are mismatched.

1-Gbps interfaces are full-duplex by default.

Full-duplex interfaces use CSMA/CD logic, so mismatches may be disguised by collisions.

 The symptoms of a duplex mismatch may be intermittent.

 Autonegotiation is disabled.

SHOW ANSWER

Which layer in the OSI reference model is responsible for determining the availability of the
receiving program and checking to see if enough resources exist for that communication?

transport

network

 presentation

 session

application

SHOW ANSWER

What field is consist of 6 bytes in the field identification frame in IEEE 802.1Q?

 

 SA

 DA

FCS

other

SHOW ANSWER

What are contained in layer 2 ethernet frame? (Choose Three.)

 

 Preamble

 TTL

Type/length

Frame check sequence

version

 others

SHOW ANSWER

What layer of the OSI Model is included in TCP/IP Model's INTERNET layer?

Application

 Session

Data Link

 Presentation

 Network

SHOW ANSWER

What interconnection cable can you use when you use a MDI connection?

 

cut-through

 straight-through

 crossover

rollover

SHOW ANSWER
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