In a scenario where a large organization needs to ensure that critical applications receive guaranteed bandwidth and priority over less important traffic, especially during peak usage, which QoS (Quality of Service) mechanism would be most effective?

D) Differentiated Services (DiffServ).

C) First-In, First-Out (FIFO) queuing.

D) Differentiated Services (DiffServ).

An organization has a private network using the IP address range 192.168.1.0/24. They want to connect to the internet but need to conceal their internal IP addresses from external networks, allowing multiple internal devices to share a single public IP address for outbound communication. Which network technology is most suitable for this requirement?

C) NAT (Network Address Translation).

B) DHCP (Dynamic Host Configuration Protocol).

C) NAT (Network Address Translation).

D) VPN (Virtual Private Network).

A web server is configured to handle multiple client requests concurrently. When a client initiates a connection to the server, a three-way handshake occurs. Which transport layer protocol is primarily responsible for establishing and managing this reliable, connection-oriented communication?

B) TCP (Transmission Control Protocol).

A) UDP (User Datagram Protocol).

B) TCP (Transmission Control Protocol).

D) ICMP (Internet Control Message Protocol).

A company needs to implement a network security solution that inspects application-layer content, such as HTTP headers and FTP commands, to detect and prevent sophisticated attacks like SQL injection or cross-site scripting (XSS). Which type of firewall or security device would be most effective?

D) Next-Generation Firewall (NGFW) or Web Application Firewall (WAF).

B) Stateful inspection firewall.

C) Circuit-level gateway firewall.

D) Next-Generation Firewall (NGFW) or Web Application Firewall (WAF).

Which of the following describes a key characteristic of a Virtual Private Network (VPN) that enables secure communication over an untrusted public network like the internet?

C) It creates an encrypted tunnel for data transmission.

A) It uses public IP addresses exclusively.

B) It eliminates the need for any firewalls.

C) It creates an encrypted tunnel for data transmission.

D) It routes all traffic directly without any intermediaries.

Which of the following IP address ranges is reserved for private networks?

B) 172.16.0.0 to 172.31.255.255

C) 192.168.0.0 to 192.168.255.255

Which protocol is connection-oriented and provides reliable, ordered, and error-checked delivery of data streams between applications?

A) TCP (Transmission Control Protocol)

B) UDP (User Datagram Protocol)

D) ICMP (Internet Control Message Protocol)

What is the primary function of a firewall in a network?

C) To filter network traffic and prevent unauthorized access

B) To assign IP addresses to devices

C) To filter network traffic and prevent unauthorized access

D) To connect multiple separate networks

What is the primary function of a router in a computer network?

B) To connect multiple network segments and forward data packets between them.

A) To filter network traffic based on MAC addresses.

B) To connect multiple network segments and forward data packets between them.

C) To convert digital signals to analog signals for transmission.

D) To amplify network signals to extend their range.

Competitive Exams : Computer Awareness - Networks (Set 3)

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Which of the following scenarios primarily involves a Layer 2 switch making forwarding decisions based on VLAN tags and MAC addresses, but also requires a Layer 3 device for inter-VLAN routing due to different subnet requirements?

A simple peer-to-peer connection between two computers.

A network where all devices are on a single broadcast domain.

A departmental network with multiple VLANs, where hosts in different VLANs need to communicate.

A wide area network (WAN) connecting two geographically distant offices.

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