4.9 Remote Access Support

Question 1

Which protocol uses port 23?

Answer 1

Telnet

Question 2

What is the point of remote access protocols?

Answer 2

To allow a client to access a server or a network device remotely over the network

Question 3

Which protocol uses port 22?

Answer 3

Secure Shell (SSH)

Question 4

Which protocol uses port 3389?

Answer 4

Remote Desktop Protocol

Question 5

What should Telnet never be used for?

Answer 5

Connecting to secure devices

Question 6

How does Telnet work?

Answer 6

By sending text-based commands to remote devices

Question 7

Which is the oldest network protocol (of all protocols covered)?

Answer 7

Telnet

Question 8

What does SSH do?

Answer 8

Encrypts all traffic between the client and the server

Question 9

What does RDP do?

Answer 9

Provides a graphical interface to connect to another computer over a network connection

Question 10

How does Remote Desktop Gateway (RDG) provide a secure connection to a server?

Answer 10

By using the SSL/TLS protocols via RDP

Question 11

What does a VPN do?

Answer 11

Establishes a secure connection between a client and a server over an untrusted public network

Question 12

Where would you use Virtual Network Computing (VNC)?

Answer 12

On thin client architectures and VDI

Question 13

Which protocol uses port 5900?

Answer 13

Virtual Network Computing

Question 14

Virtual Desktop Infrastructure

Answer 14

Hosts a desktop environment on a centralised server

Question 15

In-band management

Answer 15

Managing devices through the use of Telnet or SSH protocols over the local LAN

Question 16

Out-of-band management

Answer 16

Connecting to and configuring different network devices using an alternate path or management network

Question 17

Why would you use out-of-band over in-band management?

Answer 17

To prevent a regular user’s machine from connecting to the management interfaces of the administrator’s devices

Question 18

Is in-band or out-of-band management more expensive for the organisation?

Answer 18

Out-of-band

Question 19

Briefly explain the difference between in-band and out-of-band management

Answer 19

In: sending commands in an OS through a standard NVMe driver
Out: sending commands outside of the OS’s knowledge

Question 20

Authentication

Answer 20

Confirms and validates a user’s identity

Question 21

Authorisation

Answer 21

Gives the user proper permissions to access a resource

Question 22

Password Authentication Protocol (PAP)

Answer 22

Sends usernames and passwords in plaintext for authentication

Question 23

Challenge Handshake Authentication Protocol (CHAP)

Answer 23

Sends the client a random text string (the challenge), which is then encrypted using a password and sent back to the server

Question 24

Extensible Authentication Protocol

Answer 24

Allows for more secure authentication methods; used on encrypted networks

Question 25

What are some authentication methods that EAP supports?

Answer 25

- Token cards - Smart cards - Certificates - OTP - Public key encryption

Question 26

What sort of server should you use EAP/TLS with?

Answer 26

A RADIUS or TACACS+ server

Question 27

Remote Monitoring and Management

Answer 27

A centralized tool used by managed service providers to manage groups of users and workstations remotely

Question 28

Microsoft Remote Assistance (MSRA)

Answer 28

Will allow a user to ask for help from a technician or a coworker by using a passcode-protected imitation file

Question 29

List three other remote access tools

Answer 29

- Screen-sharing software - Video conferencing software - File transfer software

Question 30

Give two types of desktop management software

Answer 30

- Unified endpoint management - Endpoint detection and response

Question 31

Which type of software allows for pushing deployment techniques?

Answer 31

EDR

Question 32

Access control rules can be created by which remote software?

Answer 32

EDR

Question 33

Give a simple explanation of UEM

Answer 33

It is the desktop/laptop version of MDM