What is included in a logical topology map?

location of the wiring closet and access point

physical location of intermediate devices

What is included in a logical topology map?

device names and Layer 3 addressing information

location of the wiring closet and access point

physical location of intermediate devices

By placing network equipment in the telecommunications bay, rather than at the user's workplace, the following advantages can be achieved:

greater resistance against hacking attempts

Classful IP addresses describe the following statements:

The number of bits used to identify nodes depends on the class of the network.

3 out of 5 address classes are reserved for multicast and experimental use.

Reading the first bit allows you to determine the class to which the address belongs.

Only class A addresses have high bits of 100.

The host portion of a class C address can be up to 24 bits.

Classful IP addresses describe the following statements:

All subnets on a network have the same size..

3 out of 5 address classes are reserved for multicast and experimental use.

The host portion of a class C address can be up to 24 bits.

Only class A addresses have high bits of 100.

Reading the first bit allows you to determine the class to which the address belongs.

Cisco Non-Volatile Memory (NVRAM):

used to store data in the absence of power

used to store the password encryption key.

used to store the routing table

contains the current configuration file

It is the default mode when you first start an unconfigured router..

All aspects of the router configuration are available in this mode.

All router commands are available.

The global configuration mode can be accessed using the enable command.

In this mode, you can configure the interfaces and protocols of the router.

An organization that provides an opportunity for individuals and businesses to connect to the Internet.

a protocol that defines the method of interaction between computers on a local network.

an organization that develops standards for cables and wires in networking.

a network device that combines the functionality of several different network devices into one.

A protocol that defines network security requirements.

Command log functions

Calling previously entered commands.

Save command lines in a log for future reference.

Calling up to 15 command lines by default.

View a list of commands entered during the previous session.

Modes and interfaces that can be password protected to restrict access to the Cisco IOS or its segments.

user EXEC configuration save mode

Static routes describe

They require manual reconfiguration to implement network changes.

They are automatically updated when the interface is reconfigured or disabled.

They are defined in the routing table with the prefix C

They are created in interface customization mode.

They automatically become the default gateway on the router.

The local DNS server is responsible for the following tasks

converting names to IP addresses for internal hosts.

support for a large number of cached DNS records

Internet service provider server support

forwarding all name conversion requests to root servers on the internet

OSI and TCP/IP models:

The OSI network layer is comparable to the Internet layer of the TCP/IP model.

The TCP/IP model is a theoretical model, and the OSI model is based on real protocols.

The two lower layers of the TCP/IP model form the lower layer of the OSI model.

The TCP/IP model is based on eight layers, and the OSI model is based on four layers.

The TCP/IP model defines protocols for connecting physical networks.

OSI and TCP/IP models:

The OSI network layer is comparable to the Internet layer of the TCP/IP model.

The TCP/IP model is a theoretical model, and the OSI model is based on real protocols.

The two lower layers of the TCP/IP model form the lower layer of the OSI model.

The TCP/IP model is based on eight layers, and the OSI model is based on four layers.

The TCP/IP model defines protocols for connecting physical networks.

OSI and TCP/IP models:

The TCP/IP model is based on four layers, and the OSI model is based on seven layers.

The TCP/IP model defines protocols for connecting physical networks.

The TCP/IP model is a theoretical model, and the OSI model is based on real protocols.

The two lower layers of the TCP/IP model form the lower layer of the OSI model.

The OSI session layer is comparable to the Internet layer of the TCP/IP model.

Network Reliability Characteristics

Redundant hardware provides increased reliability.

The higher the MTTR (Mean Time to Repair), the higher the reliability.

Reliability is measured by the number of applications used on the network.

Fault tolerance is a measure of reliability.

The ISP guarantees the same level of reliability to all subscribers.

Description of the FTP protocol

The protocol interpreter performs the data transfer function.

It uses the well-known port 23.

The FTP client starts the data transfer using the active connection.

The protocol requires two connections between the client and the server.

FTP servers open a well-known port on the client computer.

Function of the transport layer of the OSI model

Ensuring reliable data transmission over the network using TCP

transferring data to the next device with a direct connection

formatting and encoding data for transmission

converting data into bits for transmission

Level 1 issue causing loss of Internet connection

interruption of the network cable connection

Computer networks

Quiz

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Other

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University

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Practice Problem

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Hard

Диана Темирова

Used 11+ times

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237 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The main high-bandwidth connectivity methods used by medium and large enterprises:

T1

PointToPoint

bus

DSL

cable modem

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The main high-bandwidth connectivity methods used by medium and large enterprises

T3

PointToPoint

bus

DSL

cable modem

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Using the ping command, you can determine:

number of routers between source and destination devices

default gateway address

the average time it takes for a packet to reach its destination and for the response to return to its origin

IP address of the router closest to the end device

the average time each router takes to respond between source and destination devices

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Command Line Utilities for Diagnosing Problems at Layer 3

CLI

ping

DNS

packet sniffer

Telnet

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Command Line Utilities for Diagnosing Problems at Layer 3

packet sniffer

DHCP

DNS

ipconfig

Telnet

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Command Line Utilities for Diagnosing Problems at Layer 3

Telnet

packet sniffer

GUI

TeraTerm

ping

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Physical layer functions of the OSI model

signal generation

data sharing

adding a hardware address

data encapsulation in frames

packet routing

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