WGU D316 OBJECTIVE ASSESSMENT ACTUAL EXAM(2025) 100%VERIFIED |complete QUESTIONS AND ANSWERS | GRADED A+.

mainstream interface for modern adapter cards.

x16 x8 x4 x1 slots

Peripheral Component Interconnect Express (PCIe) bus

a legacy bus type, having been superseded by PCI Express.

Peripheral Component Interconnect (PCI)

the standard form factor for most desktop PC motherboards and cases. 12 inches wide by 9.6 inches deep. Can contain up to seven expansion slots

Advanced Technology Extended (ATX)

standard specifies a 9.6-inch (244 mm x 244 mm) square board. Can have a maximum of four expansion slots.

Micro-ATX (mATX)

6.7 inches (170 mm x 170 mm) square with one expansion slot.

Mini-ITX

How many pins is the P1 main motherboard?

The main P1 motherboard power connector is a distinctive 2-pin x 12-pin block with square pin receptacles.

How many pins are fan connectors?

Fan connectors are 3- or 4-pin Molex KK format.

This cable can support both analog and digital output

Digital Visual Interface (DVI)

This 15-pin port was the standard analog video interface for PC devices for a very long time.

Video Graphics Array (VGA)

Wide SCSI bus has unique IDs from...

Each device on a wide SCSI bus must be configured with a unique ID, from 0 to 15. The host adapter is usually set to 7 or 15.

Integrated drive electronics (IDE) color coded connectors...

The blue connector is for the motherboard port. The black (end) and grey (middle) connectors attach to devices 0 and 1. On the cable, pin 1 is identified with a red stripe.

Serial port is referred to as a...

Communications (COM) port.

USB 3.2 Gen 1 speed...

5 Gbps

USB 3.2 Gen 2x1

10 Gbps

USB 3.2 Gen 2x2

2 x 10 Gbps

Molex power connectors have how many pins...

Molex connector is usually white or clear plastic and has 4 pins.

SATA speeds... original, revision 2 and revision 3

The first commercially available SATA standard supported speeds of up to 150 MBps. This standard was quickly augmented by SATA revision 2 (300 MBps) and then SATA revision 3 (600 MBps).

...provides a fast downlink but a slow uplink.

Asymmetrical DSL (ADSL)

...DSL offer the same uplink and downlink speeds.

Symmetric version of DSL

...solution retains some sort of copper wiring to the customer premises while extending the fiber link from the point of presence to a communications cabinet servicing multiple subscribers.

Fiber to the curb (FTTC)

...achieves higher bit rates than other DSL types at the expense of range.

Very high-speed DSL (VDSL). Allows for both symmetric and asymmetric modes

...Internet connection means that the service provider's fiber optic cable is run all the way to the customer's building.

fiber to the premises (FTTP)

Optical network terminal (ONT)

converts the optical signal to an electrical one. The ONT is connected to the customer's router using an RJ45 copper wire patch cord.

...uses ground-based long-range fixed access wireless technology.

Wireless internet service provider (WISP)

...allows subscribers to use a removable subscriber identity module (SIM) card to use an unlocked handset with their chosen network provider.

Global System for Mobile Communication (GSM)

...the handset is directly managed by the provider and there is no removable SIM card.

Code Division Multiple Access (CDMA)

An IPv4 address is how many bits long?

32 bits long.

What does the router use to convert between the private and public addresses?

Network address translation (NAT)

What is the minimum configurations for a host to communicate on an IPv4 network?

Each host must be configured with an IP address and subnet mask at a minimum to communicate on an IPv4 network.

How many bits and how is an IPv6 address written?

An IPv6 address is a 128-bit number and is written in hexadecimal notation.

What are the two main parts of an IPv6 address?

the first 64 bits are used as a network ID, while the second 64 bits designate a specific interface.

What is "dual stack"?

Most hosts and routers can operate both IPv4 and IPv6 at the same time. This is referred to as "dual stack."

TCP sends what packets?

SYN, SYN/ACK, and ACK packets. FIN packets. Allows the receiver to send a negative acknowledgement (NACK) to force retransmission of a missing or damaged packet.

DHCP requests and TFTP use TCP or UDP?

UDP

TCP Protocols

FTP, SSH, Telnet, SMTP, DNS, HTTP, POP, IMAP, SMB HTTPS, LDAP, RDP

UDP Protocols

DNS, DHCP (Client/Server), SNMP

Host name can be combined with a domain name and suffix equals...

Fully qualified domain name (FQDN)

DNS "A" record

An address (A) record is used to resolve a host name to an IPv4 address.

DNS "AAAA" record

An AAAA record resolves a host name to an IPv6 address.

DNS "MX" record

A Mail Exchange (MX) record is used to identify an email server for the domain so that other servers can send messages to it.

DNS "TXT" record

A TXT record is used to store any free-form text that may be needed to support other network services.

...uses a TXT resource record published via DNS by an organization hosting email service.

Sender Policy Framework (SPF)

...uses cryptography to validate the source server for a given email message.

DomainKeys Identified Mail (DKIM)

...framework ensures that SPF and DKIM are being utilized effectively. Can use SPF or DKIM or both.

Domain-Based Message Authentication, Reporting, and Conformance (DMARC)

Problems have ______, __________, and __________________.

causes, symptoms, and consequences.

6 Steps of Troubleshooting Model...

1.) Identify the Problem

2.) Establish a theory of probable cause (question obvious)

3.) Test the theory to determine the cause

4.) Establish a plan of action to resolve the problem and implement the solution

5. Verify full-system functionality and, if applicable, implement preventive measures

6.) Document the findings, actions, and outcomes

What should you do when Identifying the Problem?

Gather Information from the User, Question the Obvious, Perform Backup

If you cannot solve a problem yourself, what should you do?

escalate it

...UEFI feature designed to prevent a computer from being hijacked by malware. Computer firmware is configured with cryptographic keys that can identify trusted code.

Secure Boot

This specification for hardware-based storage of digital certificates, cryptographic keys, and hashed passwords. Its HARD CODED with a unique, unchangeable key, referred to as the endorsement key.

Trusted platform module (TPM)

A secure USB key or thumb drive used to store cryptographic material can be referred to as a...

Hardware security module (HSM)

POST 1 short beep

Normal POST, system is OK. Most modern PCs are configured to boot silently, however.

POST continuous beep

Problem with system memory modules or memory controller.

POST repeating short beeps

Power supply fault or motherboard problem.

There are two ways of formatting the boot information:

MBR and GPT.

HDD grinding noise

A loud or grinding noise, or any sort of clicking sound , is a sign of a mechanical problem.

Disk Thrashing

Constant activity, often referred to as disk thrashing, can be a sign that there is not enough system RAM so that the disk is being used continually for paging (virtual memory).

"Bootable device not found" means...

If the PC fails to boot from the fixed disk, it is either faulty or there is file corruption.

Read/write failure— such as "Cannot read from the source disk" (SSD)

On an SSD, the cause will be one or more bad blocks

Read/write failure— such as "Cannot read from the source disk" (HDD)

HDD, This is typically caused by bad sectors . A sector can be damaged through power failure or a mechanical fault.

Blue screen of death (BSOD)

A failing fixed disk and file corruption may cause a particularly severe read/write failure, resulting in a system stop error (a crash screen).

There are two main scenarios for RAID failure:

1.) failure of a device within the array

2.) failure of the whole array or volume.

This RAID configuration has no redundancy, speed is more important that reliability.

RAID 0

Correcting overheating issues...

Ensure that the CPU fan is working.

Make sure the heat sink is properly fitted.

Always use blanking plates to cover up holes in the back or front of the PC.

...is a part of the chipset that keeps track of the calendar date and time. Its a coin cell lithium battery.

Real time clock (RTC) battery (CMOS)

How to fix "dim image"

Use the OSD (on-screen display) to check the brightness and contrast controls to make sure they are not turned all the way down.

How to fix "fuzzy image"

Output resolution does not match the display device's native resolution, the image will appear fuzzy. Use the OS to change the output resolution or update the driver.

How to fix "flashing screen"

Check the video cable and connectors. A flickering or flashing image could also be caused by the display's backlight or circuitry starting to fail.

Dead Pixels

Defects in a flat-panel monitor may cause individual pixels to be "stuck" or "dead." Fixed pixels can also sometimes be reactivated by gently pressing or tapping the affected area of the screen with a stylus or pencil eraser.

Burn-In

a ghost image is "burned" permanently onto the display. use screensaver

How to fix "Incorrect color display"

Color calibration (or workflow) refers to a process of adjusting screen and scanner settings so that color input and output are balanced.

Printer Wi-Fi connectivity can be established in two different ways:

Infrastructure mode and WiFi Direct

Printer Property Traits:

updating the driver, printing to a different port, sharing and permissions, setting basic device options (such as whether a duplex unit or finisher unit is installed), and configuring default paper types for different feed trays

Printer Preference Traits:

orientation of paper or whether to print in color or black and white, Paper/Quality tab and Finishing tab, printing on both sides etc.

Types of Network scan services:

Scan to email

Scan to folder or SMB

Scan to cloud

Laser Printer...

most popular printer. Has 7 stages. Transferring stage moves the toner from the drum onto the print media. Uses TONER

...is the process by which the printer determines the appropriate print density or color balance (basically, how much toner to use).

Calibration

What comes in a Laser Printer maintenance kit?

a set of replacement feed rollers, transfer roller, and fuser unit.

These are often used for good-quality color output, such as photo printing. They are slower and often noisier, except for low-volume, good-quality color printing. Uses Carriage system

Inkjet Printers

2 Inkjet Maintenance Operations:

Print head alignment: If output is skewed.

Print head cleaning: A blocked or dirty nozzle will show up on output as a missing line.

This printer strikes an inked ribbon against paper to leave marks. One common type is the dot matrix printer, which uses a column of pins in a print head to strike the ribbon. Tractor fed

Impact Printer

On a LASER printer, a grinding noise indicates what?

a problem with the toner cartridge, fuser, or other gears/rollers.

On an INKJET, a grinding noise typically indicates what?

a fault in the carriage mechanism.

This printing defect is most likely to indicate that the toner cartridge needs replacing.

Faded or faint prints defect

This printing defect; toner is poorly distributed (give the cartridge a gentle shake) or that the transfer roller is dirty or damaged.

White stripes defect

This printing defect indicates that the primary charge roller is dirty or damaged or that the high voltage power supply to the developer unit is malfunctioning.

Black stripes or whole page black defect

This printing defect; loose toner may be getting onto the paper.

Speckling on output defect

This printing defect is due to dirty feed rollers or a damaged or dirty photosensitive drum.

Vertical or horizontal lines defect

Toner not fused to paper printing defect

Output that smudges easily indicates that the fuser needs replacing.

This printing defect is a sign that the photosensitive drum has not been cleaned properly.

Double/echo images defect

This issue is the time it takes for a signal to reach the recipient.

Latency

This issue is the amount of variation in delay over time and network technicians can measure it by sampling the elapsed time between packets arriving.

Jitter

______ is a mail retrieval protocol that supports permanent connections to a server and connecting multiple clients to the same mailbox simultaneously.

Internet Message Access Protocol (IMAP)

A manufacturing firm uses an older Windows NT computer to operate a unique piece of machinery. To support such a legacy system on the network, what common port settings are enabled for communications?

137-139 NETBIOS

What is the normal size for a laptop magnetic drive?

2.5in

A systems administrator is wanting to use a process in which the TCP/IP protocol is used to query and update an X.500 directory. What can be used to accomplish this task?

LDAP

How many binary digits are found within a media access control (MAC) address?

48

The hypervisor is a part of a bare-metal platform and managing access to the host hardware directly.

Type 1 Hypervisor

Which virtualization solution that separates host resources for each instance that is running at the operating system level?

Container

Antenna must be provisioned with a motor so that it can periodically realign with the array. "phased array"

Low Earth Orbital Satellite Internet Access (LEO)