Please keep at least one language enabled. || కనీసం ఒక భాషను ఎంచుకోండి.
Question 1
ప్రశ్న 1
Which statement best defines a computer network?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• A computer network consists of interconnected computing devices that can communicate with one another.
• Networked devices can exchange information and share resources such as files, printers and services.
• The devices do not have to use the same operating system, and Internet access is not required merely to form a network.
• Networked devices can exchange information and share resources such as files, printers and services.
• The devices do not have to use the same operating system, and Internet access is not required merely to form a network.
వివరణ:
Question 2
ప్రశ్న 2
Which of the following is a major advantage of connecting computers through a network?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• Resource sharing is one of the fundamental benefits of computer networking.
• Multiple users can share files, printers, applications and communication services through a network.
• Networking improves communication and resource utilization, but it does not eliminate security requirements or guarantee that failures cannot occur.
• Multiple users can share files, printers, applications and communication services through a network.
• Networking improves communication and resource utilization, but it does not eliminate security requirements or guarantee that failures cannot occur.
వివరణ:
Question 3
ప్రశ్న 3
Which hardware component provides a computer with an interface through which it can connect to a network?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• A Network Interface Card or network adapter provides the interface between a computer and a network.
• A NIC handles the exchange of network data through the supported wired or wireless interface.
• Graphics, sound and power components perform functions unrelated to providing the computer's network interface.
• A NIC handles the exchange of network data through the supported wired or wireless interface.
• Graphics, sound and power components perform functions unrelated to providing the computer's network interface.
వివరణ:
Question 4
ప్రశ్న 4
Which network device is primarily used to connect multiple wired computers, printers and servers within the same Ethernet LAN?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• An Ethernet switch connects multiple wired network devices within a local network.
• It forwards network traffic toward the appropriate connected destination rather than treating every device as a separate network.
• Routers perform the different function of connecting separate networks.
• It forwards network traffic toward the appropriate connected destination rather than treating every device as a separate network.
• Routers perform the different function of connecting separate networks.
వివరణ:
Question 5
ప్రశ్న 5
Which device primarily connects different networks and forwards packets between them?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• A router connects one network to another and forwards packets between networks.
• Routers commonly connect a local network to other networks, including the Internet.
• A switch is mainly associated with connecting devices within a local network, whereas a router performs internetwork communication.
• Routers commonly connect a local network to other networks, including the Internet.
• A switch is mainly associated with connecting devices within a local network, whereas a router performs internetwork communication.
వివరణ:
Question 6
ప్రశ్న 6
Which network component allows Wi-Fi-capable devices to connect wirelessly to a network?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• A wireless access point provides wireless network access to compatible devices.
• Devices such as laptops and smartphones can communicate with the access point using Wi-Fi instead of a direct Ethernet cable.
• The access point connects those wireless clients to the network infrastructure.
• Devices such as laptops and smartphones can communicate with the access point using Wi-Fi instead of a direct Ethernet cable.
• The access point connects those wireless clients to the network infrastructure.
వివరణ:
Question 7
ప్రశ్న 7
Which of the following is a network transmission medium rather than an internetworking device?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• Optical fiber is a physical transmission medium used to carry network signals.
• Routers, switches and wireless access points are active networking devices that process or forward network traffic.
• Networks can use physical media such as copper or fiber as well as wireless radio communication.
• Routers, switches and wireless access points are active networking devices that process or forward network traffic.
• Networks can use physical media such as copper or fiber as well as wireless radio communication.
వివరణ:
Question 8
ప్రశ్న 8
In computer networking, what is generally meant by a node?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• A node is a connection point or device participating in a network.
• Computers, printers, routers, switches and other network-capable devices can function as nodes.
• A node may generate, receive, store, process or forward data depending on its role.
• Computers, printers, routers, switches and other network-capable devices can function as nodes.
• A node may generate, receive, store, process or forward data depending on its role.
వివరణ:
Question 9
ప్రశ్న 9
A desktop computer has a standard RJ-45 Ethernet network port and must be connected directly to an RJ-45 port on an Ethernet switch. Which connection is normally used?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• Standard copper Ethernet connections using RJ-45 ports normally use twisted-pair Ethernet cabling.
• The cable creates the physical link between the computer's Ethernet interface and the switch port.
• HDMI, VGA and ordinary audio cables are not standard Ethernet network connections.
• The cable creates the physical link between the computer's Ethernet interface and the switch port.
• HDMI, VGA and ordinary audio cables are not standard Ethernet network connections.
వివరణ:
Question 10
ప్రశ్న 10
Which identifier is used for addressing a device on an Internet Protocol network so that IP packets can be directed toward the required destination?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• An IP address identifies a device or network interface within an IP network for communication purposes.
• Source and destination IP addresses are carried in IP packets and are used when delivering traffic across IP networks.
• Screen settings, filenames and printer model numbers do not provide IP network addressing.
• Source and destination IP addresses are carried in IP packets and are used when delivering traffic across IP networks.
• Screen settings, filenames and printer model numbers do not provide IP network addressing.
వివరణ:
Question 11
ప్రశ్న 11
What is a network protocol?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• A network protocol defines rules that communicating devices follow when exchanging data.
• Protocol rules can specify matters such as data formatting, addressing, transmission and interpretation.
• Compatible protocols allow different networked systems to communicate in an organized manner.
• Protocol rules can specify matters such as data formatting, addressing, transmission and interpretation.
• Compatible protocols allow different networked systems to communicate in an organized manner.
వివరణ:
Question 12
ప్రశ్న 12
In a client-server network model, what is the normal role of a client?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• A client requests a service, resource or data from a server.
• Client applications commonly interact with users and send requests to server applications.
• Routing traffic between networks is a router function rather than the defining role of a client.
• Client applications commonly interact with users and send requests to server applications.
• Routing traffic between networks is a router function rather than the defining role of a client.
వివరణ:
Question 13
ప్రశ్న 13
Which statement best describes the role of a server in a basic client-server network?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• A server provides services or resources that clients request over a network.
• Examples include file, application, database and print services.
• A server can normally respond to requests from multiple clients rather than being permanently limited to one client.
• Examples include file, application, database and print services.
• A server can normally respond to requests from multiple clients rather than being permanently limited to one client.
వివరణ:
Question 14
ప్రశ్న 14
Which term best describes the physical or wireless path through which network signals travel between connected nodes?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• A transmission medium provides the path through which communication signals travel.
• Wired networks can use media such as twisted-pair copper or optical fiber, while wireless networks use electromagnetic transmission through the air.
• A transmission medium is therefore part of network connectivity rather than an application or stored-data structure.
• Wired networks can use media such as twisted-pair copper or optical fiber, while wireless networks use electromagnetic transmission through the air.
• A transmission medium is therefore part of network connectivity rather than an application or stored-data structure.
వివరణ:
Question 15
ప్రశ్న 15
A small office has five computers. Instead of purchasing a separate printer for every computer, one printer is made accessible to all five computers through the network. Which networking advantage is illustrated most directly?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• Sharing one printer among several networked computers is a direct example of resource sharing.
• Networking can reduce unnecessary duplication of hardware and make shared resources more convenient to use.
• The example does not imply that traffic, NICs or hardware failures are eliminated.
• Networking can reduce unnecessary duplication of hardware and make shared resources more convenient to use.
• The example does not imply that traffic, NICs or hardware failures are eliminated.
వివరణ:
Question 16
ప్రశ్న 16
Ten wired computers and a network printer in an office must communicate locally, and the office LAN must also communicate with an external network such as the Internet. Which combination best matches these two basic networking functions?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• A switch is appropriate for interconnecting multiple wired devices within the same Ethernet LAN.
• A router provides connectivity between that LAN and other networks.
• The two devices therefore perform complementary local-connectivity and internetwork-connectivity roles.
• A router provides connectivity between that LAN and other networks.
• The two devices therefore perform complementary local-connectivity and internetwork-connectivity roles.
వివరణ:
Question 17
ప్రశ్న 17
Consider the following statements about basic network components:
1. A NIC provides a device with a network interface.
2. A switch can connect wired devices within the same LAN.
3. A router can connect different networks.
4. A wireless access point can provide wireless devices with access to a network.
Which statements are correct?
1. A NIC provides a device with a network interface.
2. A switch can connect wired devices within the same LAN.
3. A router can connect different networks.
4. A wireless access point can provide wireless devices with access to a network.
Which statements are correct?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• Statement 1 correctly describes the networking role of a NIC.
• Statements 2 and 3 correctly distinguish the basic roles of switches and routers.
• Statement 4 is also correct because an access point provides wireless connectivity to compatible client devices.
• Statements 2 and 3 correctly distinguish the basic roles of switches and routers.
• Statement 4 is also correct because an access point provides wireless connectivity to compatible client devices.
వివరణ:
Question 18
ప్రశ్న 18
Assertion (A): Two computers can form a computer network and communicate with each other even if that network has no connection to the Internet.
Reason (R): A computer network requires connected devices capable of communicating or sharing resources; Internet access is not a requirement for the existence of the network.
Choose the correct answer.
Reason (R): A computer network requires connected devices capable of communicating or sharing resources; Internet access is not a requirement for the existence of the network.
Choose the correct answer.
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• A local network can operate and allow communication between its connected devices without having Internet access.
• Internet connectivity is an additional connection to external networks rather than a defining requirement of every computer network.
• Both statements are true, and the Reason correctly explains the Assertion.
• Internet connectivity is an additional connection to external networks rather than a defining requirement of every computer network.
• Both statements are true, and the Reason correctly explains the Assertion.
వివరణ:
Question 19
ప్రశ్న 19
Match List I with List II:
List I
(a) NIC
(b) Switch
(c) Router
(d) Wireless access point
List II
1. Connects different networks
2. Provides a device with an interface to a network
3. Provides wireless clients with network connectivity
4. Connects multiple wired devices within a local Ethernet network
Choose the correct matching code.
List I
(a) NIC
(b) Switch
(c) Router
(d) Wireless access point
List II
1. Connects different networks
2. Provides a device with an interface to a network
3. Provides wireless clients with network connectivity
4. Connects multiple wired devices within a local Ethernet network
Choose the correct matching code.
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• A NIC provides the network interface, giving (a)-2.
• A switch connects local wired devices, giving (b)-4, while a router connects different networks, giving (c)-1.
• A wireless access point provides wireless network connectivity, giving (d)-3.
• A switch connects local wired devices, giving (b)-4, while a router connects different networks, giving (c)-1.
• A wireless access point provides wireless network connectivity, giving (d)-3.
వివరణ:
Question 20
ప్రశ్న 20
A computer communicates with an Ethernet switch through its wired NIC and an Ethernet cable. If that cable is physically disconnected, which statement is correct about that particular wired connection?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• A wired Ethernet connection requires an established physical link between the network interfaces involved.
• Disconnecting the cable breaks that particular wired path, so Ethernet traffic cannot pass through it until connectivity is restored.
• The disconnection does not automatically create a wireless link or permanently damage the NIC.
• Disconnecting the cable breaks that particular wired path, so Ethernet traffic cannot pass through it until connectivity is restored.
• The disconnection does not automatically create a wireless link or permanently damage the NIC.
వివరణ:
Answer Key సమాధానాల పట్టిక
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Question 1 ప్రశ్న 1Answer: B. Two or more computing devices connected so that they can communicate and share information or resources సమాధానం: B.
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Question 2 ప్రశ్న 2Answer: D. Users can share information and resources such as files, printers and network services. సమాధానం: D.
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Question 3 ప్రశ్న 3Answer: A. Network Interface Card (NIC) సమాధానం: A.
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Question 4 ప్రశ్న 4Answer: C. Switch సమాధానం: C.
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Question 5 ప్రశ్న 5Answer: C. Router సమాధానం: C.
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Question 6 ప్రశ్న 6Answer: A. Wireless access point సమాధానం: A.
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Question 7 ప్రశ్న 7Answer: D. Optical-fiber cable సమాధానం: D.
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Question 8 ప్రశ్న 8Answer: B. A connected point or device capable of sending, receiving, storing or forwarding network data సమాధానం: B.
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Question 9 ప్రశ్న 9Answer: A. Twisted-pair Ethernet cable సమాధానం: A.
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Question 10 ప్రశ్న 10Answer: C. IP address సమాధానం: C.
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Question 11 ప్రశ్న 11Answer: D. A set of rules governing how devices format, transmit and exchange information over a network సమాధానం: D.
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Question 12 ప్రశ్న 12Answer: B. To request and use services or resources provided by a server సమాధానం: B.
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Question 13 ప్రశ్న 13Answer: C. It provides services, data or shared resources in response to requests from clients. సమాధానం: C.
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Question 14 ప్రశ్న 14Answer: A. Transmission medium సమాధానం: A.
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Question 15 ప్రశ్న 15Answer: B. Resource sharing సమాధానం: B.
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Question 16 ప్రశ్న 16Answer: D. A switch to interconnect the local wired devices and a router to connect the LAN with other networks సమాధానం: D.
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Question 17 ప్రశ్న 17Answer: A. 1, 2, 3 and 4 సమాధానం: A.
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Question 18 ప్రశ్న 18Answer: D. Both Assertion and Reason are true, and Reason is the correct explanation of Assertion. సమాధానం: D.
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Question 19 ప్రశ్న 19Answer: C. (a)-2, (b)-4, (c)-1, (d)-3 సమాధానం: C.
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Question 20 ప్రశ్న 20Answer: B. The wired link through that cable cannot carry network traffic until the physical connection is restored. సమాధానం: B.