IT English Essentials: Unit 8 - Quiz 1

What is the difference between a star and a mesh network topology?

• The main difference is that a mesh network has a central hub connecting all devices, whereas a star network has devices connected to multiple other devices.

• In a star network, devices are interconnected with each other, while in a mesh network, all devices connect to a central server.

• The main difference is that a star network has a central hub connecting all devices, whereas a mesh network has devices connected to multiple other devices.

• A star network has devices connected to multiple other devices, whereas a mesh network has a central hub connecting all devices.

Which layer of the OSI model is responsible for routing and forwarding data?

• Data Link Layer (Layer 2)

• Network Layer (Layer 3)

• Physical Layer (Layer 1)

• Transport Layer (Layer 4)

What is the purpose of the TCP protocol?

• To encrypt data transmission

• To provide real-time communication

• To ensure compatibility with all devices

• To provide reliable, ordered, and error-checked delivery of data between applications

What is the main difference between WEP and WPA security protocols?

• WEP and WPA both use the same encryption methods

• WEP is more secure than WPA

• WPA is outdated compared to WEP

• WEP is less secure and vulnerable to attacks, while WPA provides stronger encryption and security features.

Explain the concept of firewall in network security.

• Firewall is a physical barrier used to block network traffic

• Firewall is a tool for monitoring network usage

• Firewall is a software that enhances network speed

• Firewall in network security is a system that monitors and controls network traffic based on security rules to protect against unauthorized access and cyber threats.

What is the advantage of using a bus network topology?

• Higher security due to centralized control

• Easy installation and expansion with less cable length required.

• Lower cost of implementation

• Faster data transmission speeds

Which layer of the OSI model is responsible for establishing, maintaining, and terminating connections?

• Application Layer (Layer 7)

• Transport Layer (Layer 4)

• Data Link Layer (Layer 2)

• Network Layer (Layer 3)

What are some common wireless networking standards?

• NFC

• Wi-Fi 802.11d

• Wi-Fi 802.11a, 802.11b, 802.11g, 802.11n, 802.11ac

• Bluetooth 5.0

What is the purpose of encryption in network security?

• To reduce network latency

• To increase network speed

• To protect sensitive data from unauthorized access.

• To improve network connectivity

How does a repeater function in a network?

• A repeater functions by converting incoming signals into different formats.

• A repeater functions by receiving incoming signals, amplifying them, and retransmitting the signals to extend the network's reach.

• A repeater functions by blocking incoming signals to prevent network congestion.

• A repeater functions by encrypting incoming signals for security purposes.