CS 601 — Reviewer for Finals

Which of the following IEEE 802.3 specification for 10BASE-T?
Correct answer: Standard Ethernet 10Mbps.

A form of broadcast radio that is used widely for mobile communications, specifically wireless modems and cell phones.
Correct answer: Cellular Radio

Capability of carrying significantly more signals than wire cables
Correct answer: Fiber-optic Cable

Which of the following hardware generation that integrated circuits electronics, printed on silicon wafers?
Correct answer: 3rd generation (1964-today)

Guided media provides a conduit from one device to another, includes
Correct answer: Twisted Pair Cable

Transmission media are usually categorized as ____________.
Correct answer: Guided or Unguided

__________ cable consist of an inner copper core and second conducting outer sheath.
Correct answer: Coaxial

Which of this is not a guided media?
Correct answer: Wireless LAN

Which of the following wireless transmission media that are radio waves that provide a high-speed signal transmission?
Correct answer: Microwaves

UTP is commonly used in
Correct answer: DSL

an electrical disturbance that can degrade communications.
Correct answer: Noise

A space station that receives microwave signals from an earth-based station, amplifies (strengthens) the signals, and broadcasts the signals back over a wide area to any number of earth-based stations.
Correct answer: Communications satellite

In fiber optics, the signal is _______ waves.
Correct answer: Light

Transmission Media carries information in ________ format?
Correct answer: Bits

What is attenuation in Transmission media?
Correct answer: Loss of Signals Energy

Which of the following wireless transmission media that sends signals using infrared light waves?
Correct answer: Infrared

These are the places where the information contained in the computer is accumulated and retrieved, such as operating programs, functional programs or files generated by the user.
Correct answer: Secondary storage disks

Which of the following wireless transmission media that a wireless transmission medium that distributes radio signals through the air over long distances such as between cities, regions, and countries and short distances such as within an office or home?
Correct answer: Broadcast Radio

Which of the following hardware generation that electronics through transistors, which reduced the total size of computers considerably?
Correct answer: 2nd generation (1957-1963)

Transmission Media is present at ____________ layer of OSI model?
Correct answer: Physical Layer

Designed to perform a wide range of functions using a large set of instructions.
Correct answer: CISC Architecture

What is the most common type of cable used for wired Ethernet networks?
Correct answer: Twisted pair cable

Which of the following is a protocol used for transferring files over the internet?
Correct answer: FTP

Which protocol is used to assign IP addresses to computers on a network?
Correct answer: DHCP

Which of the following physical transmission media is commonly used for high-speed internet connections?
Correct answer: All of the above can be used for high-speed internet connections

Which type of flash memory card is the smallest in size?
Correct answer: MicroSD card

Which of the following wireless transmission technologies has the longest range?
Correct answer: Wi-Fi

What is the most common interface used for connecting external hard drives to a computer?
Correct answer: USB

Which type of cable is typically used for transmitting video signals between devices?
Correct answer: HDMI cable

Which of the following physical transmission media has the highest data transfer rate?
Correct answer: Fiber optic cable

What is the basic structure of a Von Neumann architecture?
Correct Answer: Input/output devices, RAM, CPU, and storage

Which of the following wireless transmission technologies is most commonly used for short-range communication between devices?
Correct answer: Bluetooth

Which of the following physical transmission media is most commonly used for cable television (CATV) distribution?
Correct answer: Coaxial cable

Which of the following physical transmission media is most commonly used for short distance connections between devices in a local area network (LAN)?
Correct answer: Twisted pair cable

What is the main advantage of solid state drives (SSDs) over traditional hard disk drives (HDDs)?
Correct answer: Faster data transfer speeds

What is the maximum length of a twisted pair Ethernet cable segment?
Correct answer: 100 meters

Which component of a computer system is responsible for managing input/output operations?
Correct answer: I/O controller

Which type of cable is typically used for high-speed data transmission between storage devices?
Correct answer: SATA cable

Which of the following components of a computer is responsible for storing data permanently?
Correct answer: Hard drive

What is the most common type of optical disc used for storing digital media?
Correct answer: DVD

What is the purpose of access control lists (ACLs)?
Correct answer: To control which traffic is allowed to pass through a switch port

Which network architecture uses a combination of both client-server and peer-to-peer architecture?
Correct answer: Hybrid architecture

What is the importance of proper training and documentation for network administrators and users?
Correct answer: To minimize human error

A new firmware update is available for your switch. What action should you take to prevent firmware vulnerabilities?
Correct answer: Install the update as soon as possible

Which network protocol is used for file sharing in a Windows environment?
Correct answer: SMB

Which of the following network topologies has a single point of failure?
Correct answer: Star topology

Which of the following is a common application of HPC in the field of energy and environmental research?
Correct answer: Analyzing ocean currents

One of your network administrators accidentally deleted a VLAN. What best practice should you follow to prevent this type of error?
Correct answer: Use proper VLAN tagging

How many layers does the OSI model have?
Correct answer: 7

You are experiencing network performance issues and suspect that there may be a network loop. Which best practice should you follow to prevent network loops?
Correct answer: Use proper spanning tree protocol (STP) configuration

Which of the following is NOT a type of wireless network security?
Correct answer: SSL

What is the importance of physical security measures for switches?
Correct answer: To prevent physical attacks such as theft or tampering

What type of network problems can be caused by improperly configured switches?
Correct answer: Network loops, broadcast storms, and spanning tree protocol (STP) issues

Which of the following industries is most likely to use HPC for scientific research?
Correct answer: Pharmaceutical

What is the maximum number of hosts that can be assigned to a /24 network?
Correct answer: 254

You discover that a device on your network has been sending packets with a spoofed MAC address. What security measure should you implement to prevent this type of attack in the future?
Correct answer: Port security

A company needs to process large amounts of financial data to create accurate models. Which of the following characteristics of an HPC system would be most useful in this scenario?
Correct answer: Specialized software

You are performing a network security assessment and discover a vulnerability in your switch firmware. What action should you take to mitigate this vulnerability?
Correct answer: Install the latest firmware update

What are some fields that commonly use HPC?
Correct answer: All of the above

Which of the following is a measure of a computer's ability to perform floating-point arithmetic operations?
Correct answer: FLOPS

One of your network administrators accidentally misconfigured a switch port, causing a network issue. How could this error have been prevented?
Correct answer: Providing proper training and documentation

What is port security?
Correct answer: A security feature that allows only authorized devices to connect to a specific port on a switch

What is the primary advantage of a client-server architecture?
Correct answer: It allows for centralized control of network resources.

You are setting up a new switch and want to prevent configuration errors. What best practice should you follow?
Correct answer: Configure port speed and duplex mode correctly

Your network is experiencing a denial-of-service (DoS) attack that is affecting switch performance. What security measure could have prevented this attack?
Correct answer: Access control lists (ACLs)

What is HPC used for?
Correct answer: Solving complex problems that require significant computing power and storage capabilities

Which network protocol is used for email communication?
Correct answer: All of the above

Which of the following protocols is used to securely transfer files between remote servers?
Correct answer: SSH

What is the first layer of the OSI model?
Correct answer: Physical layer

Which network architecture is commonly used in small businesses and homes?
Correct answer: Peer-to-peer architecture

What is the purpose of the Physical layer?
Correct answer: To transmit bits across a communications medium

FLOPS is a measure of which of the following?
Correct answer: A computer's processing speed

Which device is used to connect two or more different networks together?
Correct answer: Router

What is High Performance Computing (HPC)?
Correct answer: The use of computer clusters and parallel processing techniques to solve complex problems

A researcher needs to simulate a complex chemical reaction. Which of the following characteristics of an HPC system would be most useful in this scenario?
Correct answer: High-speed processing

Which of the following industries is most likely to use HPC for weather forecasting?Correct answer: Aviation

You discover that an unauthorized individual has gained physical access to one of your switches. What physical security measure could have prevented this?
Correct answer: Locking the cabinet or rack

What type of computing architecture do HPC systems often use?
Correct answer: Distributed computing

What is the purpose of NAT?
Correct answer: To translate between public and private IP addresses

What is the primary disadvantage of a peer-to-peer architecture?
Correct answer: It is less secure than other architectures.

What is the importance of keeping switch firmware up-to-date?
Correct answer: To prevent firmware vulnerabilities from being exploited by attackers

What is one key characteristic of HPC systems?
Correct answer: High-speed interconnects

Which network architecture allows for a centralized control of network resources?
Correct answer: Client-server architecture

What is the purpose of VLAN hopping?
Correct answer: To gain access to traffic on other VLANs

What is the role of HPC in scientific research?
Correct answer: To process large amounts of data and perform complex calculations quickly

Which network protocol is used for remote access to a network?
Correct answer: All of the above

What is the best practice for configuring port speed and duplex mode?
Correct answer: Set all ports to auto-negotiate speed and duplex

You suspect that an unauthorized user has gained access to your network. What security measure could have prevented this?
Correct answer: User authentication

Which layer of the OSI model is responsible for error checking?
Correct answer: Transport layer

What does HPC stand for?
Correct answer: High Performance Computing

Which of the following is NOT a key characteristic of HPC systems?
Correct answer: Low-speed processing

What is the purpose of the Network layer?
Correct answer: To route packets by discovering the best path across a physical network

What is the role of HPC in weather forecasting?
Correct answer: To run complex models that simulate atmospheric conditions

What type of attacks can switches be vulnerable to?
Correct answer: MAC address spoofing, VLAN hopping, and denial-of-service attacks

What is the purpose of a subnet mask?
Correct answer: To identify the network and host portions of an IP address

What is the purpose of a firewall?
Correct answer: To prevent unauthorized access to a network.

What is a broadcast storm?
Correct answer: A condition where broadcast traffic floods the network and causes performance issues

What is VLAN tagging?
Correct answer: A feature that assigns a unique identifier to a VLAN to allow traffic to be identified and managed

What are some of the key characteristics of HPC systems?
Correct answer: All of the above

What is the purpose of user authentication?
Correct answer: To identify and authenticate users before allowing them access to the network

Which of the following is the process of encoding data to prevent unauthorized access?
Correct answer: Encryption

What is a multi-layered defense strategy?
Correct answer: Using multiple security measures at different layers of a network to provide overlapping protection and increase the overall security posture.

What is endpoint security?
Correct answer: Securing endpoints, such as workstations, servers, and mobile devices, as they are often the entry points for attacks.

What is the best way to protect a computer network from unauthorized access?
Correct answer: Implementing a firewall

Which of the following is used to create secure communication channels over the internet to protect data transmitted between remote locations or users?
Correct answer: VPN

What is patching and updating?
Correct answer: Regularly applying patches and updates to operating systems, software, and network devices to address known vulnerabilities.

What layer of a multi-layered defense strategy involves monitoring network traffic, system logs, and other security events to detect and respond to potential security incidents?
Correct answer: Monitoring and Logging

What is encryption?
Correct answer: The process of encoding data to prevent unauthorized access.

What is network segmentation?
Correct answer: Dividing a network into smaller subnetworks to restrict the lateral movement of attackers.

What is the purpose of regularly applying patches and updates to operating systems, software, and network devices?
Correct answer: To address known vulnerabilities and prevent exploitation by attackers

Which of the following is a software or hardware-based network security device that filters incoming and outgoing traffic based on predefined rules?
Correct answer: Firewall

What is the purpose of network segmentation?
Correct answer: To restrict the lateral movement of attackers in case of a security breach

What is a firewall?
Correct answer: A software or hardware-based network security device that filters incoming and outgoing network traffic based on predefined rules.

What is the purpose of implementing a multi-layered defense strategy in cybersecurity?
Correct answer: To provide overlapping protection and increase the overall security posture

What is a Virtual Private Network (VPN)?
Response: A tool used to create secure communication channels over the internet.
Correct answer: A security mechanism that detects and prevents unauthorized access or attacks on a network.

What is the purpose of Intrusion Detection/Prevention Systems (IDS/IPS)?
Correct answer: To detect and prevent unauthorized access or attacks on a network

What is an Intrusion Detection/Prevention System (IDS/IPS)?
Response: A security mechanism that detects and prevents unauthorized access or attacks on a network.
Correct answer: A mechanism used to identify patterns of known attacks or abnormal behaviors.

What is user authentication and access control?
Correct answer: Proper mechanisms to ensure only authorized users have access to network resources.

Which of the following is essential for proper user authentication and access control mechanisms?
Correct answer: Strong password policies

What layer of a multi-layered defense strategy focuses on proper authentication and authorization mechanisms to ensure that only authorized users have access to network resources?
Correct answer: Access Control