TRE 4.0 Networking Quiz Practice Set 1 30th October 2026 Share On Que: (1). What is the primary function of a router in a computer network? To filter incoming traffic based on IP addresses C. To connect multiple networks together B. To connect devices within the same network A. More than one of the above D. None of the above E. Check Answer Open question page Que: (2). Which layer of the OSI model is responsible for routing packets? Physical Layer A. Data Link Layer B. Network Layer C. More than one of the above D. None of the above E. Check Answer Open question page Que: (3). Which networking device is primarily used to connect multiple devices within a LAN? Switch B. Modem C. Router A. More than one of the above D. None of the above E. Check Answer Open question page Que: (4). Which protocol is primarily used to automatically assign IP addresses to devices in a network? DHCP C. HTTP B. DNS A. More than one of the above D. None of the above E. Check Answer Open question page Que: (5). Which protocol is used to translate domain names into IP addresses? FTP A. DNS B. SMTP C. More than one of the above D. None of the above E. Check Answer Open question page Que: (6). Which of the following is the default port number of HTTP? 25 B. 80 C. 21 A. More than one of the above D. None of the above E. Check Answer Open question page Que: (7). Which of the following devices operates primarily at the Physical Layer of the OSI model? Switch C. Repeater B. Router A. More than one of the above D. None of the above E. Check Answer Open question page Que: (8). Which of the following is a connectionless transport layer protocol? UDP B. TCP A. FTP C. More than one of the above D. None of the above E. Check Answer Open question page Que: (9). What is the main purpose of a subnet mask in an IP network? To encrypt network communication B. To identify the network and host portions of an IP address A. To assign MAC addresses to devices C. More than one of the above D. None of the above E. Check Answer Open question page Que: (10). Which protocol is commonly used to securely transfer files over a network? FTP A. SFTP C. TFTP B. More than one of the above D. None of the above E. Check Answer Open question page Que: (11). In the OSI model, which layer is responsible for routing and forwarding data packets? Physical Layer C. Data Link Layer A. Transport Layer B. More than one of the above D. None of the above E. Check Answer Open question page Que: (12). Which layer of the OSI model is responsible for end-to-end communication and reliable data delivery? Session Layer A. Transport Layer B. Presentation Layer C. More than one of the above D. None of the above E. Check Answer Open question page Que: (13). Which layer of the OSI model is responsible for establishing, managing, and terminating communication sessions? Session Layer C. Network Layer B. Application Layer A. More than one of the above D. None of the above E. Check Answer Open question page Que: (14). Which OSI layer is responsible for data encryption, decryption, and compression? Presentation Layer A. Data Link Layer C. Physical Layer B. More than one of the above D. None of the above E. Check Answer Open question page Que: (15). Which layer of the OSI model provides services directly to end-user applications? Transport Layer A. Session Layer C. Application Layer B. More than one of the above D. None of the above E. Check Answer Open question page Que: (16). At which OSI layer are MAC addresses used for communication? Network Layer A. Data Link Layer C. Transport Layer B. More than one of the above D. None of the above E. Check Answer Open question page Que: (17). What is the Protocol Data Unit (PDU) of the Data Link Layer called? Packet C. Frame B. Segment A. More than one of the above D. None of the above E. Check Answer Open question page Que: (18). Which layer of the OSI model converts digital bits into electrical, optical, or radio signals? Network Layer B. Session Layer C. Physical Layer A. More than one of the above D. None of the above E. Check Answer Open question page Que: (19). Which of the following is the correct order of the OSI model layers from lowest to highest? Application, Presentation, Session, Transport, Network, Data Link, Physical B. Physical, Data Link, Network, Transport, Session, Presentation, Application A. Physical, Network, Data Link, Transport, Presentation, Session, Application C. More than one of the above D. None of the above E. Check Answer Open question page Que: (20). Which layer of the OSI model is responsible for error detection in transmitted frames? Session Layer C. Application Layer A. Data Link Layer B. More than one of the above D. None of the above E. Check Answer Open question page Que: (21). Which device is used to connect multiple devices within the same local area network (LAN)? Switch B. Bridge C. Router A. More than one of the above D. None of the above E. Check Answer Open question page Que: (22). Which networking device is used to connect two or more LAN segments and filter traffic based on MAC addresses? Modem C. Repeater A. Bridge B. More than one of the above D. None of the above E. Check Answer Open question page Que: (23). Which network topology connects all devices to a central networking device? Star Topology C. Bus Topology A. Ring Topology B. More than one of the above D. None of the above E. Check Answer Open question page Que: (24). Which networking device broadcasts incoming data to all connected ports without maintaining a MAC address table? Hub B. Switch A. Router C. More than one of the above D. None of the above E. Check Answer Open question page Que: (25). Which technology is commonly used for wired communication in a Local Area Network? Bluetooth B. Infrared C. Ethernet A. More than one of the above D. None of the above E. Check Answer Open question page Que: (26). Which IEEE standard is associated with wireless local area networks (WLAN)? IEEE 802.11 C. IEEE 802.5 B. IEEE 802.3 A. More than one of the above D. None of the above E. Check Answer Open question page Que: (27). What is the main purpose of a Network Interface Card (NIC)? To store network data permanently B. To provide network connectivity to a computer A. To increase processor speed C. More than one of the above D. None of the above E. Check Answer Open question page Que: (28). Which type of cable is commonly used in Ethernet LAN connections? Twisted pair cable B. Coaxial cable only A. Optical audio cable C. More than one of the above D. None of the above E. Check Answer Open question page Que: (29). Which switching technique forwards a frame only after receiving the complete frame and checking it for errors? Store-and-forward switching B. Cut-through switching A. Fragment-free switching C. More than one of the above D. None of the above E. Check Answer Open question page Que: (30). Which method is traditionally used by Ethernet networks operating in half-duplex mode to detect transmission collisions? CSMA/CA B. CSMA/CD A. Token Passing C. More than one of the above D. None of the above E. Check Answer Open question page Que: (31). Which protocol is used to send email over the Internet? HTTP C. FTP A. SMTP B. More than one of the above D. None of the above E. Check Answer Open question page Que: (32). Which protocol is commonly used by an email client to download emails from a mail server? POP3 B. SMTP A. SNMP C. More than one of the above D. None of the above E. Check Answer Open question page Que: (33). Which email protocol allows users to access and synchronize emails across multiple devices? FTP A. SMTP C. IMAP B. More than one of the above D. None of the above E. Check Answer Open question page Que: (34). Which protocol extension is used to support email attachments such as images, audio, and documents? MIME A. DHCP C. ARP B. More than one of the above D. None of the above E. Check Answer Open question page Que: (35). What is the default TCP port number used by SMTP for email submission with STARTTLS? 587 B. 25 A. 110 C. More than one of the above D. None of the above E. Check Answer Open question page Que: (36). Which protocol is used to monitor and manage network devices? SNMP A. POP3 C. SMTP B. More than one of the above D. None of the above E. Check Answer Open question page Que: (37). Which protocol is used to securely access websites over the Internet? HTTPS B. FTP C. HTTP A. More than one of the above D. None of the above E. Check Answer Open question page Que: (38). Which protocol is responsible for resolving IP addresses into corresponding MAC addresses in an IPv4 LAN? DNS A. ARP B. ICMP C. More than one of the above D. None of the above E. Check Answer Open question page Que: (39). Which protocol is used to transfer files between a client and a server over a network? FTP A. DNS C. SMTP B. More than one of the above D. None of the above E. Check Answer Open question page Que: (40). Which protocol is used to report errors and provide diagnostic information in IP networks? TCP A. ICMP B. SMTP C. More than one of the above D. None of the above E. Check Answer Open question page Que: (41). What is the purpose of a subnet mask in TCP/IP networking? To identify the network portion of an IP address A. To identify the host portion of an IP address B. To convert IP addresses into domain names C. More than one of the above D. None of the above E. Check Answer Open question page Que: (42). How many bits are present in an IPv4 address? 32 bits B. 16 bits A. 64 bits C. More than one of the above D. None of the above E. Check Answer Open question page Que: (43). Which of the following is a valid private IPv4 address? 8.8.8.8 A. 172.20.10.5 B. 200.10.10.1 C. More than one of the above D. None of the above E. Check Answer Open question page Que: (44). What is the subnet mask of a Class C IPv4 network in its default classful addressing scheme? 255.255.0.0 B. 255.255.255.0 C. 255.0.0.0 A. More than one of the above D. None of the above E. Check Answer Open question page Que: (45). What does CIDR stand for in IP networking? Classless Inter-Domain Routing A. Central Internet Data Routing B. Class Internet Domain Resolution C. More than one of the above D. None of the above E. Check Answer Open question page Que: (46). How many usable host addresses are available in a traditional IPv4 /24 subnet? 255 C. 256 B. 254 A. More than one of the above D. None of the above E. Check Answer Open question page Que: (47). Which IP address is used as the loopback address in IPv4? 10.0.0.1 C. 192.168.1.1 A. 127.0.0.1 B. More than one of the above D. None of the above E. Check Answer Open question page Que: (48). Which IPv4 address is reserved for broadcasting data to all devices on a local subnet? 0.0.0.0 C. 127.0.0.1 A. 255.255.255.255 B. More than one of the above D. None of the above E. Check Answer Open question page Que: (49). Which IPv4 address class provides the largest number of host addresses per network in traditional classful addressing? Class C C. Class A A. Class B B. More than one of the above D. None of the above E. Check Answer Open question page Que: (50). Which subnet mask corresponds to the CIDR prefix /26? 255.255.255.192 C. 255.255.255.128 B. 255.255.255.0 A. More than one of the above D. None of the above E. Check Answer Open question page Que: (51). What is the maximum data rate of Bluetooth version 5.0? 1 Mbps A. 2 Mbps B. 5 Mbps C. More than one of the above D. None of the above E. Check Answer Open question page Que: (52). Which frequency band is commonly used by Bluetooth technology? 5 GHz C. 2.4 GHz ISM band B. 900 MHz A. More than one of the above D. None of the above E. Check Answer Open question page Que: (53). Which IEEE standard is associated with Wireless Personal Area Networks (WPAN)? IEEE 802.3 A. IEEE 802.15 C. IEEE 802.11 B. More than one of the above D. None of the above E. Check Answer Open question page Que: (54). Which wireless technology is specifically designed for low-power, low-data-rate communication in IoT networks? Zigbee A. Ethernet B. HDMI C. More than one of the above D. None of the above E. Check Answer Open question page Que: (55). What is the typical communication range of NFC technology? Up to 10 metres A. Around 4 centimetres C. Up to 100 metres B. More than one of the above D. None of the above E. Check Answer Open question page Que: (56). Which Bluetooth feature allows a device to communicate with multiple nearby devices in a low-energy network? Bluetooth LE Advertising and Connections A. Token Passing C. Circuit Switching B. More than one of the above D. None of the above E. Check Answer Open question page Que: (57). Which Wi-Fi frequency band generally provides better coverage and wall penetration? 2.4 GHz A. 6 GHz C. 5 GHz B. More than one of the above D. None of the above E. Check Answer Open question page Que: (58). Which wireless communication technology is commonly used for passive RFID tags? Optical Fibre C. Ethernet B. Radio Frequency Identification A. More than one of the above D. None of the above E. Check Answer Open question page Que: (59). Which Bluetooth architecture is traditionally associated with connecting one central device to multiple peripheral devices? Piconet A. WAN C. MAN B. More than one of the above D. None of the above E. Check Answer Open question page Que: (60). Which wireless technology is designed for long-range, low-power communication in IoT applications? NFC A. HDMI C. LoRaWAN B. More than one of the above D. None of the above E. Check Answer Open question page
