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Quiz Session - Attempts With Random Questions

CompTIA Server+ Exam Questions

Page 4 of 25

61.

All the following are possible solutions to address BIOS failure issues, EXCEPT:

  • Replace failed drives

  • Keep data centers cool

  • Update the BIOS

  • Ensure optimized airflow

Correct answer: Replace failed drives

The BIOS is a computer program embedded on a chip on a computer's motherboard that recognizes and controls various devices that make up the computer. Some ways to address BIOS failures include:

  • Keeping data centers cool
  • Updating the BIOS
  • Ensuring optimized airflow

Replacing failed drives is a way to deal with storage failures, not BIOS failures.

62.

Which storage speed factor refers to how fast a disk spins?

  • RPM

  • IOPS

  • RPS

  • IOPM

Correct answer: RPM

Revolutions per minute (RPM) is a measurement of how many revolutions a computer's hard drive makes in a single minute. The higher the RPM, the faster the data will be accessed for both read and write operations.

Input/output operations per second (IOPS) measures the speed at which data can be read or written to disk.

RPS and IOPM are fabricated terms.

63.

Which type of transmission media carries multiple signals over different channels via the same medium?

  • Fiber optic

  • Shielded copper

  • Unshielded copper

  • Cladding

Correct answer: Fiber optic 

Wavelength-division multiplexing (WDM) is the technique of transmitting multiple channels of information through a single optical fiber by sending multiple light beams of different wavelengths through the fiber.

64.

How is Microsoft Active Directory synchronized between distributed domain controllers in the network?

  • Replication

  • Decentralization

  • Federation

  • Failover

Correct answer: Replication 

Microsoft Active Directory databases are copied (replicated) between domain controllers in the network. A domain controller is a server that holds a replica of the active directory database.

65.

You are configuring remote network connectivity for the LAN to send traffic to the internet. Your users need high availability in your configuration. What DHCP scope configuration setup is appropriate for this scenario?

  • Two or more default gateways

  • Two or more DHCP reservations

  • One or more address inclusions

  • Four or more address ranges

Correct answer: Two or more default gateways

Default gateways enable traffic to be sent outside of a LAN. By specifying at least two default gateways for remote network connectivity (if one router becomes unavailable), the others can pick up the workload.

66.

What is the permanent 48-bit hardware address that all network cards have?

  • MAC

  • IPv4

  • IPv6

  • ARP

Correct answer: MAC

A media access control address (MAC address) is a unique identifier assigned to a network interface controller (NIC) for use as a network address in communications within a network segment. The MAC address is manufactured into every network card, such as an Ethernet card or Wi-Fi card, and, therefore, cannot be changed.

67.

Your organization has all of its user accounts configured in Microsoft Active Directory. You need to provide single sign-on between the on-premises network and several public cloud providers. 

How can you synchronize the on-premises directory to the cloud-based directory services?

  • Replication

  • Duplication

  • Transference

  • Coordination

Correct answer: Replication

As more organizations shift their infrastructure to the cloud but still have active on-premises systems, they need to migrate and synchronize a copy of the on-premise directory to the cloud as well. This is accomplished through replication.

68.

Which DHCP scope assigns a specific IP address to a device with a specific MAC address?

  • Reservation

  • Lease

  • Static

  • Permanent

Correct answer: Reservation

A DHCP reservation is a permanent IP address assignment. It is a specific IP address within a DHCP scope that is permanently reserved for use to a specific DHCP client.

69.

Given an IP address, what type of DNS lookup returns the fully qualified domain name?

  • Reverse

  • Forward

  • Translation

  • Unbundling

Correct answer: Reverse

When a DNS request comes from the client with an IP address, the DNS server works by looking up the IP address in its table and then returns the fully qualified domain name.

70.

What hardware component is an internal card that provides a dedicated connection from the computer to a computer network?

  • NIC

  • Bus

  • SATA port

  • PCI port

Correct answer: NIC

A network interface card (NIC) is a hardware component, typically a circuit board or chip, which is installed on a computer so that it can connect to a network. The network card operates as an intermediary between a computer and a data network and provides a full-time connection.

A bus transfers data within a computer, and PCI is a bus standard. A SATA port is a type of disk interface.

71.

What type of chip can be embedded in cards used to track who has entered and left a building?

  • RFID

  • CPU

  • RISC

  • ECC

Correct answer: RFID

RFID chips are embedded in many types of cards, including building access cards. The chips can store any information, including names, numbers, and security codes. A reader attached to a door simply checks the information against its database. Access can be restricted, allowing only certain people to get in.

CPU chips are the heart of a computer, and they can use a Reduced Instruction Set Computing (RISC) processor. Error correcting code (ECC) memory chips have the ability to identify and correct bit errors by using parity bits.

72.

The four bytes of an IPv4 address are grouped into two bytes that represent the network number and class. What do the other two bytes represent?

  • Host identifier

  • NIC identifier

  • MAC address

  • NAT translation

Correct answer: Host identifier

The second two bytes of the IPv4 address uniquely identifies the host on the network. For each host on the network, the network part of the address will be the same, but the host part must be different.

73.

Users are reporting that they cannot access their business systems. When you run ipconfig /all on the server, the IP address is 169.254.1.1. Where is the first place you should look to begin troubleshooting?

  • DHCP server

  • DNS server

  • Router configuration

  • ARP cache

Correct answer: DHCP server

When the server can't get an IP address, it assigns itself a 169.254 IP address. Getting a 169.254.1.1 address indicates that the server cannot reach the DHCP server over the network.

74.

The IPv4 address space consists of 32 bits. How many bits does IPv6 use?

  • 128

  • 64

  • 256

  • 2072

Correct answer: 128 

An IPv6 address is 128 bits in length and consists of eight, 16-bit fields, with each field bounded by a colon. Each field must contain a hexadecimal number in contrast to the dotted-decimal notation of IPv4 addresses.

75.

TCP is a connection-oriented protocol. A TCP session is established and confirmed between two communicating devices before transmitting data by completing a 3-step handshake. What is the first step in the handshake?

  • SYN

  • ACK

  • NACK

  • PING

Correct answer: SYN

To establish a connection between server and client, the target server must have open ports that can accept and initiate new connections. The client node sends a SYN (Synchronize Sequence Number) data packet over an IP network to a server on the same or an external network. The objective of this packet is to ask if the server is open for new connections.

76.

All the following are possible solutions to address boot sequence failure issues, EXCEPT:

  • Run disk diagnostics

  • Configure bootable disk order in BIOS

  • Configure bootable disk partitions in the operating system

  • Flash the BIOS so that USB boot is supported

Correct answer: Run disk diagnostics

Booting is a startup sequence that starts the operating system of a computer when it is turned on. A boot sequence is the initial set of operations that the computer performs when it is switched on. Methods for fixing failed boots include:

  • Configure bootable disk order in BIOS
  • Configure bootable disk partitions in the operating system
  • Flash the BIOS so that USB boot is supported

Running disk diagnostics is a solution to storage failures, not a failed boot.

77.

You recently installed a centralized print server to handle the printing requirements for several departments, but users are reporting that they cannot print. During initial troubleshooting, you verify that the cables are connected, the IP reservation is configured correctly, disk space is available on the print server, and you are able to establish a basic network connection. 

What is the next logical step in this troubleshooting process?

  • Reinstall the print driver

  • Upgrade the disk

  • Check the DNS record

  • Run ipconfig /all on the printer

Correct: Reinstall the print driver

A print driver is a piece of software on a server that converts the data to be printed to a format that a printer can understand. After the physical layer components have been checked and verified, the next step in the trouble-shooting process is to examine the software layer. 

78.

Which type of fiber-optic cabling supports large volumes of data transmission but travels short distances?

  • Multimode

  • Single mode 

  • Duplex mode

  • Simplex mode

Correct answer: Multimode

Multimode fiber optic cable has a large core diameter that allows multiple modes of light to propagate. Because of this, the number of light reflections created as the light passes through the core increases, creating the ability for more data to pass through at a given time. Because of the high dispersion, the quality of the signal is reduced over long distances.

79.

An effective disaster recovery strategy is to implement clusters of devices. If one service fails, the remaining devices in the cluster can take over the workload. When a cluster service is running simultaneously on all the cluster nodes, what type of cluster configuration is that?

  • Active/active 

  • Active/passive

  • Dual/Dual

  • Passive/active

Correct answer: Active/active 

An active-active cluster is typically made up of at least two nodes, both actively running the same kind of service simultaneously. Organizations with little to no tolerance for service interruptions can rely on the resiliency and redundancy of critical components using active/active.

80.

Your organization's workload is increasing, and you need to add capacity. The architecture for all the applications is a three-tier client/server. What is the term for adding additional systems to manage the workload?

  • Scaling out

  • Scaling up

  • Scaling down

  • Scaling in

Correct answer: Scaling out

"Scaling out" means adding more new servers to the configuration where capacity is needed. For example, if additional capacity is only needed for the database operations, more database servers could be added to the environment. The other servers in the architecture do not need to be affected.

"Scaling up" is the practice of adding additional horsepower to an existing server.

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