Network Administrator MCQ Questions And Answers

A browser is a software that allows users to browse through web pages. It is designed to retrieve and display information from the World Wide Web. Browsers interpret and render HTML code, allowing users to view text, images, videos, and other multimedia content on websites. They also provide features such as bookmarks, history, and tabbed browsing to enhance the user experience. Common examples of browsers include Google Chrome, Mozilla Firefox, and Microsoft Edge.

The valid domain and forest functional levels for a Windows Server 2008 domain include Windows Server 2003 /2008. This means that the domain and forest functional levels can be set to either Windows Server 2003 or Windows Server 2008.

The two features available in Windows XP, Vista, and Windows 7 are:

A. Remote Desktop Connection / Assistance

B. PSR (Problem Steps Recorder)

Remote Desktop Connection / Assistance allows users to remotely connect to and control another computer over a network or the internet. PSR (Problem Steps Recorder) is a built-in troubleshooting tool that allows users to record the steps they take on their computer, along with accompanying screenshots, to help diagnose and resolve technical issues.

Data is stored in computers as files. Files are units of data that are organized and stored in a structured format on a computer's storage device. They can contain various types of information such as text, images, videos, or programs. Files are typically organized within directories, which act as containers for organizing and managing the files. Floppies, on the other hand, are a type of storage medium that was commonly used in the past but is now outdated. "Matter" is not a relevant option for storing data in computers.

In IPv4 addressing, each IP address is a unique 32-bit number. This means that an IPv4 address is composed of 32 binary digits, which are divided into four groups of 8 bits each, separated by periods. The 32-bit address allows for a total of approximately 4.3 billion unique IP addresses, which are used to identify devices on a network.

Resistance is measured in ohms. Ohms is the unit of electrical resistance, which is the opposition to the flow of electric current. It is named after the German physicist Georg Simon Ohm. Resistance can be defined as the ratio of voltage to current in a circuit, and it determines how much current will flow through a given conductor for a given voltage. Therefore, ohms is the correct unit to measure resistance.

RAM, which stands for Random Access Memory, is often used in a typical computer operation. It is a type of computer memory that allows data to be stored and retrieved quickly by the computer's processor. RAM is volatile, meaning that its contents are lost when the computer is powered off or restarted. It is used to temporarily store data and instructions that the processor needs to access quickly while performing tasks. This makes RAM an essential component in a computer's ability to multitask and run programs efficiently.

NICs (Network Interface Cards) are hardware devices that enable computers to connect to a network. They contain a data transceiver, which is responsible for transmitting and receiving data signals. The data transceiver allows the NIC to send and receive data packets over the network, enabling communication between the computer and other devices on the network. This functionality is essential for networking and data transfer purposes.

ATX is the correct answer because it is a motherboard form factor that uses one 20 pin connector. AT and BABY AT are older form factors that use different connectors, so they are not the correct answer. "All of the above" is also not the correct answer because it includes AT and BABY AT, which do not use a 20 pin connector.

A hard disk is divided into tracks, which are concentric circles on the disk. Each track is further subdivided into sectors, which are pie-shaped sections on the track. Sectors are the smallest unit of storage on a hard disk and are used to store data. Clusters, on the other hand, are groups of sectors and are used by the file system to manage the allocation of data. Vectors are not related to the division of a hard disk. Heads, on the other hand, are the components of a hard disk that read and write data to the disk's surface.

Optic Fiber Cable can transmit data at high speeds because it uses light to carry information. It consists of a thin strand of glass or plastic, which allows for faster transmission of data compared to other cables. The light signals can travel long distances without losing much of their strength or quality, making it ideal for high-speed data transmission. Additionally, optic fiber cables are also immune to electromagnetic interference, further ensuring reliable and fast data transmission.

The long horizontal bar at the bottom of the screen that includes the running programs, the Start button, and the Notification Area is called the taskbar.

GPOs (Group Policy Objects) are updated on domain controllers at approximately 15-minute intervals. This means that any changes made to GPOs will be applied to the domain controllers and subsequently to the client computers within the domain within this time frame. This periodic update ensures that the most recent policies are enforced across the network, allowing administrators to make necessary changes and have them implemented in a timely manner.

TCP (Transmission Control Protocol) is a connection-oriented sub protocol. This means that it establishes a reliable and ordered connection between two devices before transmitting data. TCP ensures that all packets are received in the correct order and handles any lost or corrupted packets by retransmitting them. This connection-oriented nature of TCP makes it suitable for applications that require a guaranteed delivery of data, such as web browsing, file transfer, and email communication.

The laser printer is commonly used for desktop publishing because it produces high-quality prints with sharp text and graphics. It uses a laser beam to create an electrostatic image on a drum, which is then transferred onto paper using toner. This technology allows for precise and detailed printing, making it ideal for professional documents and graphic design projects. Inkjet printers, daisywheel printers, and dot matrix printers are also used for printing, but they are not as commonly used for desktop publishing due to their lower print quality and speed.

A node with an IP address of 168.34.88.29 belongs to a Class B network. This is because in IPv4 addressing, the first octet of the IP address determines the class of the network. Class B networks have a range of IP addresses from 128.0.0.0 to 191.255.255.255, and the given IP address falls within this range.

The default subnet mask for a Class B network is 255.255.0.0. In Class B networks, the first two octets are used to identify the network, while the last two octets are used to identify the hosts within the network. The subnet mask of 255.255.0.0 allows for a larger number of hosts compared to the other options given.

Windows Easy Transfer supports two types of migrations: Side-by-side and Wipe and Load. Side-by-side migration involves transferring files, settings, and programs from an old computer to a new one while keeping the old computer running. Wipe and Load migration, on the other hand, involves wiping the old computer clean and then transferring files, settings, and programs to a new computer. Both options provide users with flexibility in migrating their data and settings to a new system.

ICs (Integrated Circuits) are classified on the basis of the number of transistors they contain. The number of transistors in an IC determines its complexity and functionality. ICs with a higher number of transistors can perform more advanced tasks and have greater processing power. This classification system helps in categorizing ICs based on their capabilities and allows engineers and designers to select the appropriate IC for their specific requirements.

DirectX is a software technology developed by Microsoft that is responsible for driving and managing the graphics hardware in a computer system. It provides a collection of application programming interfaces (APIs) that allow developers to create and run multimedia applications, particularly games, on Windows-based platforms. DirectX acts as a bridge between the software and the graphics hardware, enabling efficient communication and optimization of graphics rendering. Therefore, the correct answer is "Software that drives Graphic hardware."

Secondary memory refers to the storage devices that are external to the computer's main memory (RAM) and are used to store data for long-term use. It is also known as auxiliary memory because it provides additional storage capacity to the computer system. This includes devices like hard disk drives, solid-state drives, optical drives, and magnetic tapes. Primary memory, on the other hand, refers to the computer's main memory where data is directly accessed by the CPU. Virtual memory is a memory management technique that uses a combination of primary memory and secondary memory to create an illusion of having more RAM than is physically available. Therefore, the correct answer is auxiliary memory.

NTFS (New Technology File System) is the correct answer because it is the only file system technology listed that provides file level security. NTFS supports access control lists (ACLs) which allow for fine-grained permissions to be set on individual files and folders. This means that administrators can control who can access, modify, or delete specific files, providing a higher level of security compared to other file systems like FAT or FAT32. Ext3 is a file system used in Linux and does not have native file level security features.

Domain & OU stands for Domain and Organizational Unit, which are both container objects in a network environment. A domain is a logical group of network resources, such as computers, users, and groups, that share a common directory database. An Organizational Unit (OU) is a container within a domain that can hold users, groups, computers, and other OUs. Both Domain and OU are used to organize and manage network resources, making them container objects.

In the latest generation computers, the instructions are executed both sequentially and in parallel. This means that some instructions are executed one after the other, in a sequential manner, while others are executed simultaneously, in parallel. This allows for better utilization of the computer's resources and improves overall performance. By combining sequential and parallel execution, modern computers can handle complex tasks more efficiently and effectively.

Firmware refers to programs or software that are permanently stored in read-only memory (ROM) of a device. Unlike software that can be modified or updated by the user, firmware remains unchanged and is essential for the device's operation. It provides the necessary instructions for the hardware to function properly. Therefore, the correct answer for the question is "Firmware".

Computer software includes operating system programs, application programs, and packaged programs. Operating system programs are essential for managing computer hardware and providing a platform for other software to run on. Application programs are designed to perform specific tasks or functions, such as word processing or spreadsheet calculations. Packaged programs refer to software that is commercially available and can be purchased and installed on a computer system. Therefore, the correct answer is "All of these" as it encompasses all the mentioned categories of computer software.

The correct answer is ThinkPad. ThinkPad is the name of the series of laptop computers manufactured by IBM.

The 1st computer instructions are available on boot up from ROM BIOS. ROM BIOS stands for Read-Only Memory Basic Input/Output System, which is a firmware that is permanently stored on a chip on the computer's motherboard. It contains the initial instructions that are necessary for the computer to start up and perform basic functions, such as initializing hardware and loading the operating system.

Nortel is a company that specializes in manufacturing network equipment. This includes devices such as routers, switches, and other networking infrastructure components. Network equipment is essential for establishing and maintaining communication between different devices and networks. Nortel's expertise lies in designing and producing reliable and high-performance network equipment that enables efficient data transmission and connectivity.

Groups are indeed an organizing component of Active Directory. They are used to efficiently manage and control access to resources within the network by grouping users, computers, and other objects together based on common attributes or requirements.

Incorrect CMOS settings can cause a fixed disk error. The CMOS (Complementary Metal-Oxide-Semiconductor) is responsible for storing the computer's BIOS settings, including the configuration of hardware devices such as the hard disk. If the settings related to the fixed disk are incorrect or misconfigured in the CMOS, it can lead to a fixed disk error. This error can prevent the computer from recognizing or accessing the hard disk properly, resulting in data loss or system malfunction. Therefore, it is important to ensure that the CMOS settings are correctly configured to avoid fixed disk errors.

IEEE 1284 is the correct answer because it is the standard that governs parallel communications. This standard specifies the electrical and mechanical interfaces for parallel communications between computers and peripheral devices, such as printers. It defines the signaling and data transfer protocols, as well as the physical connectors and cables used for parallel communication. RS232, RS-232a, and CAT 5 are not relevant to parallel communications and do not govern this type of communication.

VPN (Virtual Private Network) is the protocol that allows the creation of secure networks and electronic tunnels between two machines. VPNs encrypt data transmitted over public networks, ensuring confidentiality and security. Options A, B, and C are not protocols for creating secure networks and electronic tunnels, making them incorrect choices for this question.

The index hole is a feature found in floppy disks. It is a small hole located near the center of the disk. When the disk is inserted into a floppy disk drive, a sensor detects the presence or absence of the index hole as the disk rotates. This allows the drive to accurately determine the starting point of each track on the disk. The index hole is crucial for the proper functioning of floppy disks, as it helps in reading and writing data to the correct locations on the disk.

RS-232 is a standard that applies to serial ports. Serial ports are used to connect devices such as modems, printers, and mice to a computer. RS-232 is a communication protocol that defines the electrical and functional characteristics of the interface, allowing for the transmission of data between devices. This standard has been widely used in the past for serial communication and is still used in some applications today.

The most likely cause of the user's inability to change his password is that the property "User cannot change password" has been enabled when the user account was created. This property restricts the user from changing their password, which could explain the issue reported by the user.

Traditional switches operate at the data link layer of the OSI model. The data link layer is responsible for the reliable transfer of data between network devices over a local area network (LAN). Switches use MAC addresses to forward data packets within a LAN, making decisions based on the destination MAC address. By operating at the data link layer, switches can efficiently and accurately direct network traffic within a LAN, improving network performance and reducing collisions.

When installing a new IDE hard drive, one of the first things to check is the jumpers on the hard drive. Jumpers are small connectors that determine the drive's settings, such as whether it is the primary or secondary drive. If the jumpers are not set correctly, the system BIOS may not recognize the new drive. By checking and adjusting the jumpers as needed, the system should be able to detect the new IDE hard drive.

PPM stands for "Pages Per Minute" and measures the printer's speed in terms of how many pages it can print in one minute. This metric indicates the printer's printing speed, which is important for assessing its efficiency and productivity. Therefore, option C, PPM, is the correct answer.

The UAC (User Account Control) prompts for permission or administrative credentials when installing a device driver or an application. This is because installing drivers or applications can make changes to the system settings and potentially affect the overall functionality and security of the computer. The UAC helps to prevent unauthorized or malicious installations by requiring the user to confirm their actions and provide administrative credentials if necessary.

A microcomputer is formed by combining a microprocessor unit, a memory unit, and an input/output unit. The microprocessor unit is responsible for executing instructions, the memory unit stores data and instructions, and the input/output unit allows the microcomputer to interact with external devices. Therefore, the combination of these three units forms a microcomputer.

NTP (Network Time Protocol) is a simple Application layer protocol used to synchronize the clocks of computers on a network. It allows computers to accurately maintain the same time by exchanging time information between them. This is particularly important in scenarios where accurate timekeeping is crucial, such as in financial transactions, network logging, or distributed systems. NTP achieves synchronization by utilizing a hierarchical system of time servers, where lower-level servers synchronize with higher-level ones, ultimately obtaining time from highly accurate reference clocks.

A hub is a repeater with more than one output port. A hub is a networking device that connects multiple devices in a network, and it broadcasts the incoming data to all connected devices. It does not perform any filtering or routing of data, and all devices connected to a hub share the same bandwidth. Therefore, a hub is the correct answer as it fits the description of a repeater with multiple output ports.

The correct answer is IP. IP (Internet Protocol) is the sub protocol that enables TCP/IP to internetwork by allowing data packets to traverse multiple LAN segments and different types of networks through routers. TCP/IP uses IP to route the packets from the source to the destination by assigning unique IP addresses to each device on the network. IP ensures that the packets are delivered to the correct destination by using routing tables and addressing schemes.

IBM (International Business Machines Corporation) is credited with developing the floppy disk drive, which became a popular storage medium for personal computers in the late 1970s,1980s, and 1990s. IBM introduced the first commercial floppy disk drive 1971 as part of the IBM 3330 disk storage unit. This innovation revolutionized data storage and contributed to the widespread adoption of personal computing.

Acer is a personal computer manufacturer from Taiwan. Sony is a Japanese company known for its electronics products, IBM is an American multinational technology company, and Samsung is a South Korean conglomerate. Therefore, Acer is the correct answer as it is the only option that matches the given criteria.

Organizational Units are a type of Active Directory container that is used to organize a network's users and resources into logical administrative units. This helps in managing and delegating administrative tasks more efficiently. By organizing users and resources into Organizational Units, administrators can apply policies, permissions, and settings to specific groups of users or resources. This allows for better control and management of the network, making it easier to assign and revoke access rights, apply group policies, and streamline administrative tasks.

Logical topologies define how data is transmitted between nodes in a network regardless of their physical interconnection. In a bus topology, all devices are connected to a single shared communication line, while in a star topology, each device is connected directly to a central hub or switch. These two logical topologies are widely used in network designs due to their simplicity and efficiency.

The correct answer is PCIe. PCIe stands for Peripheral Component Interconnect Express and is the most popular expansion board NIC (Network Interface Card) bus today. PCIe provides high-speed data transfer rates and is widely used in modern computer systems for connecting various peripherals, including network cards.

Bit Locker was not an improvement of Windows 7 over Windows Vista. Bit Locker is a feature that was introduced in Windows Vista and continued to be available in Windows 7. It provides encryption for the operating system's drive to enhance security.