1.
What is the main goal of buffers?
Correct Answer
C. Temporarily hold data used by some types of hardware
Explanation
The main goal of buffers is to temporarily hold data used by some types of hardware. Buffers act as a temporary storage area that allows for smoother data flow between different components of a system. By temporarily holding data, buffers can help prevent data loss or corruption when there is a difference in the speed at which data is produced and consumed. This ensures that data is available when needed and can be processed at a consistent rate, improving overall system performance.
2.
What static RAM (SRAM) uses special applications in a CPU?
Correct Answer
C. Cache
Explanation
Cache memory is a type of static RAM (SRAM) that is used in special applications in a CPU. Cache memory is a high-speed memory that stores frequently accessed data and instructions, allowing the CPU to retrieve them quickly. By keeping this data closer to the CPU, cache memory helps to reduce the time it takes for the CPU to access the main memory. This improves overall system performance and efficiency. Therefore, cache memory is an important component in a CPU for optimizing data access and improving processing speed.
3.
How long does static electricity stay intact?
Correct Answer
C. Until something causes it to discharge
Explanation
Static electricity stays intact until something causes it to discharge. This means that the static charge remains until it is transferred or neutralized by coming into contact with a conductor or another object with a different charge. Once the discharge occurs, the static electricity is no longer present.
4.
What is the easiest harware installation on a computer?
Correct Answer
B. Memory Chips
Explanation
Memory chips are the easiest hardware installation on a computer because they can be easily inserted into the memory slots on the motherboard. Unlike other hardware components such as the video card, CPU, or motherboard, memory chips do not require additional cables or connectors. They simply need to be properly aligned and firmly inserted into the memory slots. This process is relatively simple and can be done by most computer users without any technical expertise.
5.
What is considered as nonvolatile memory?
Correct Answer
A. Read-Only memory (ROM)
Explanation
Nonvolatile memory refers to a type of computer memory that retains its stored data even when the power is turned off or lost. Among the options provided, Read-Only Memory (ROM) is considered as nonvolatile memory. ROM is a type of memory that stores permanent data and instructions that cannot be modified or erased by normal computer operations. It is commonly used to store firmware, such as the BIOS, which is essential for booting up the computer. Unlike volatile memory, which loses its data when the power is turned off, ROM retains its contents, making it a nonvolatile memory option.
6.
What is the first job the basic input output system does at start-up?
Correct Answer
B. Run the power-on self-test
Explanation
The first job that the basic input output system (BIOS) does at start-up is to run the power-on self-test (POST). The POST is a series of diagnostic tests that the BIOS performs to check the hardware components of the computer system. It ensures that all essential hardware components are functioning properly before proceeding with the boot process. This helps in identifying any potential issues or errors that may prevent the system from starting up successfully.
7.
Which original component was very susceptible to damage from electrostatic discharge?
Correct Answer
D. Complementary metal-oxide semiconductor (CMOS)
Explanation
The CMOS (Complementary metal-oxide semiconductor) is very susceptible to damage from electrostatic discharge. CMOS is a type of semiconductor technology used in microprocessors and other digital logic circuits. It is sensitive to static electricity, which can cause permanent damage to the component. Therefore, proper handling and precautions must be taken when working with CMOS to prevent electrostatic discharge.
8.
Which component uses a lithium battey to maintain computer settings when power is removed?
Correct Answer
D. Complementary metal-oxide semiconductor (CMOS)
Explanation
The CMOS (Complementary metal-oxide semiconductor) component uses a lithium battery to maintain computer settings when power is removed. CMOS is responsible for storing the BIOS (Basic input output system) settings, including date, time, and hardware configuration. The lithium battery provides a continuous power supply to the CMOS chip, ensuring that the settings are not lost when the computer is turned off or unplugged. This allows the computer to retain its configuration and settings even when not connected to a power source.
9.
Actively sampling the status of an external device by a client program is known as...
Correct Answer
B. Polling
Explanation
Polling refers to the process of actively sampling the status of an external device by a client program. In this method, the client program regularly checks the device to see if there is any new information or if any action needs to be taken. It is a common technique used in computer programming to interact with external hardware or devices.
10.
What is a form of firmware that contains the computer's startup instructions?
Correct Answer
C. BIOS
Explanation
BIOS stands for Basic Input/Output System. It is a form of firmware that contains the computer's startup instructions. It is responsible for initializing and testing hardware components during the boot process, and it also provides a set of low-level software routines that allow the operating system to communicate with the hardware. The BIOS is stored on a chip on the motherboard and is essential for the computer to start up and function properly.
11.
Which is a very simple example of an error detecting code?
Correct Answer
D. Parity Bit
Explanation
A parity bit is a simple error detecting code that is commonly used in data communication. It is a single bit added to a binary code to ensure that the total number of 1s in the code is either even or odd. The receiver can then check the parity bit to detect if any errors occurred during transmission. If the number of 1s is different from what the parity bit indicates, an error is detected. Therefore, the parity bit is a very simple example of an error detecting code.
12.
What is defined as an asynchronous signal from a computer hardware device indicating the need for attention from a central processing unit (CPU) or a synchronous event?
Correct Answer
D. Interrupt
Explanation
An interrupt is defined as an asynchronous signal from a computer hardware device indicating the need for attention from a central processing unit (CPU) or a synchronous event. It is a mechanism used by hardware devices to communicate with the CPU and request its attention. When an interrupt occurs, the CPU suspends its current execution and handles the interrupt request. This allows the CPU to prioritize and respond to different events or devices in a timely manner, ensuring efficient processing of tasks.
13.
Which is a small, low-level program used by the computer operation system to interact with hardware devices?
Correct Answer
B. Driver
Explanation
A driver is a small, low-level program used by the computer operating system to interact with hardware devices. It acts as a bridge between the hardware and the operating system, allowing the operating system to communicate with and control the hardware. Drivers are essential for the proper functioning of hardware devices, as they provide the necessary instructions and protocols for the operating system to utilize the hardware effectively.
14.
Which term describes the data is whole or complete?
Correct Answer
C. Data Integrity
Explanation
Data integrity refers to the accuracy, consistency, and reliability of data throughout its lifecycle. It ensures that the data is whole and complete, without any errors or inconsistencies. Data integrity is crucial in maintaining the quality and trustworthiness of data, especially in databases and information systems. It involves various measures and techniques to prevent data corruption, unauthorized modifications, or loss of data. Therefore, data integrity is the term that describes the data as whole or complete.
15.
What component initializes communication with all hardware devices and sends a message if a keyboard or mouse is not found?
Correct Answer
B. BIOS
Explanation
BIOS, or Basic Input/Output System, is responsible for initializing communication with all hardware devices in a computer system. It performs a power-on self-test (POST) during the boot process and checks if all hardware components are functioning properly. If a keyboard or mouse is not found, BIOS sends an error message to the user. Therefore, BIOS is the correct answer for the given question.
16.
On most modern computers, which has two or three levels of memory?
Correct Answer
B. Cache
Explanation
Cache is the correct answer because most modern computers have two or three levels of memory, and cache is one of those levels. Cache memory is a small and fast memory that is closer to the CPU, allowing for quick access to frequently used data and instructions. It helps to improve the computer's overall performance by reducing the time it takes to retrieve data from the slower main memory.
17.
What interrupt request (IRQ) line number is normally used for the floppy disk controller?
Correct Answer
C. 6
Explanation
The floppy disk controller typically uses IRQ line number 6. IRQ lines are used by devices to request the attention of the CPU. Each device is assigned a specific IRQ line number to avoid conflicts. In the case of the floppy disk controller, it commonly uses IRQ 6 to communicate with the CPU and handle disk operations.
18.
What is the sudden and momentary electric current that flows between two objects at different electrical potentials?
Correct Answer
D. Electrostatic discharge
Explanation
Electrostatic discharge refers to the sudden and momentary electric current that occurs between two objects at different electrical potentials. This discharge happens when there is a buildup of static electricity on one object, and it is transferred to another object with a lower electrical potential. It can occur due to various reasons such as friction, contact, or separation of materials. This discharge can be hazardous and cause damage to electronic devices, which is why precautions such as grounding and using anti-static measures are necessary.
19.
Static electricity remains intact until it is
Correct Answer
C. Discharged
Explanation
Static electricity remains intact until it is discharged. Discharging refers to the process of releasing or transferring the excess electric charge from an object to the ground or another object with a lower electric potential. When static electricity is discharged, the accumulation of electric charge is balanced, and the object returns to a neutral state. This can happen through various means, such as through contact with a conductor or through a spark or electric discharge. Once discharged, the object no longer carries a static electric charge.
20.
Under what class of electrostatic discharge (ESD) would an item fall if it was sensitive to 900 volts?
Correct Answer
A. I
Explanation
Class I of electrostatic discharge (ESD) refers to items that are sensitive to voltages below 1000 volts. Since the item in question is sensitive to 900 volts, it falls under Class I.
21.
Electrostatic discharge (ESD) items sensitive to more than 4000 but less than 15000 volts fall into category
Correct Answer
D. III
Explanation
Items that are sensitive to more than 4000 but less than 15000 volts fall into category III.
22.
What measure would you take to prevent the build up of static electricity?
Correct Answer
A. Ground the electrostatic discharge sensitive devices
Explanation
To prevent the build-up of static electricity, grounding the electrostatic discharge sensitive devices is necessary. This is because grounding provides a pathway for the static electricity to flow into the ground, preventing it from accumulating on the devices. By doing so, the risk of damaging the devices or causing a discharge that could harm individuals or disrupt the operation of electronic equipment is minimized. Checking the relative humidity level, disconnecting the circuit from the device, or turning the power switch to the off position may not directly address the issue of static electricity build-up.
23.
In which troubleshooting step would you review the case history and assure no steps were missed?
Correct Answer
D. Confirm the resolution
Explanation
In the troubleshooting process, reviewing the case history and ensuring that no steps were missed is done in the step of confirming the resolution. This step is taken after the problem has been resolved, and it involves double-checking the actions taken and the results achieved to ensure that the issue has been completely resolved. By reviewing the case history, the technician can verify that all necessary steps were taken and that no important details were overlooked, providing assurance that the problem has been effectively addressed.
24.
Normally the last step in the boot up process is
Correct Answer
D. The operating system (OS) loads into memory and user interface appears
Explanation
After the computer goes through the initial steps of the boot up process, such as the keyboard lights flashing and the memory test being visible on the monitor, the next and final step is for the operating system (OS) to load into memory. Once this happens, the user interface appears, allowing the user to interact with the computer and access its features and functions.
25.
What is normally the next step in the boot up process after initial power is applied?
Correct Answer
A. The keyboard lights should flash
Explanation
After initial power is applied, the next step in the boot-up process is for the keyboard lights to flash. This is a common indication that the computer is receiving power and initializing its hardware components. It does not necessarily mean that the operating system has loaded or that the user interface is visible.
26.
What is the first step you must take when either installing or removing an electrostatic discharge sensitive (ESDS) device?
Correct Answer
D. Turn the power switch to the off position
Explanation
When either installing or removing an electrostatic discharge sensitive (ESDS) device, the first step you must take is to turn the power switch to the off position. This is important to ensure that there is no electrical current flowing through the device, reducing the risk of electrostatic discharge and potential damage to the device. Grounding the ESDS device, checking the relative humidity level, and disconnecting the circuit from the device may be necessary steps in the process, but they should be done after turning off the power switch.
27.
The process of collecting and analyzing data to determine the cause of an operational failure and how to prevent it from recurring is called
Correct Answer
B. Fault isolation
Explanation
Fault isolation is the correct answer because it refers to the process of collecting and analyzing data to determine the cause of an operational failure and how to prevent it from recurring. This involves identifying and isolating the specific fault or problem that led to the failure, in order to address it effectively and prevent it from happening again in the future.
28.
In which troubleshooting step would you identify likely causes and eliminate unlikely causes?
Correct Answer
C. Resolve the problem
Explanation
In the troubleshooting step of "Resolve the problem," you would identify likely causes and eliminate unlikely causes. This step involves analyzing the information gathered during the previous steps, such as defining and isolating the problem, to determine the root cause of the issue. By identifying the likely causes, you can focus on finding a solution that addresses those specific causes, while eliminating unlikely causes helps narrow down the potential solutions and prevents wasting time and resources on unnecessary troubleshooting steps.
29.
In which troubleshooting step would you determine which conditions are present?
Correct Answer
A. Define the problem
Explanation
In the troubleshooting step of "Define the problem," you would determine which conditions are present. This step involves gathering information about the issue, identifying any symptoms or error messages, and understanding the current state of the problem. By defining the problem, you can analyze the conditions that led to the issue and start formulating a plan to resolve it.
30.
What is normally the next step in the boot up process after the basic input output system (BIOS) message appears on the monitor?
Correct Answer
B. A memory test should be visible on the monitor
Explanation
After the BIOS message appears on the monitor, the next step in the boot up process is usually a memory test being visible on the monitor. This test checks the computer's RAM (Random Access Memory) to ensure that it is functioning properly. It is an important step in the boot up process as it helps identify any potential issues with the computer's memory.
31.
When troubleshooting hardware, one simple method of identifying cables is to
Correct Answer
D. Place masking tape to the cables and connection points
Explanation
Placing masking tape on the cables and connection points is a simple method of identifying cables when troubleshooting hardware. This allows for easy identification and organization of the cables, making it easier to track and troubleshoot any issues. It also helps prevent confusion and ensures that the cables are properly connected.
32.
After receiving their initial educations in COMSEC account management, how often must CRO's trained to remain qualified to manage their account?
Correct Answer
C. Annually
Explanation
CROs must receive their initial education in COMSEC account management. After that, they need to undergo training annually to remain qualified to manage their account. This ensures that they stay up to date with the latest practices and regulations in the field.
33.
In which troubleshooting step would you confirm a dilemma exists?
Correct Answer
C. Isolate the problem
Explanation
In the troubleshooting process, isolating the problem is the step where you confirm that a dilemma exists. This step involves identifying the specific issue or malfunction and separating it from other potential causes or factors. By isolating the problem, you can focus on finding a solution for that particular issue, rather than wasting time and effort on unrelated factors. Therefore, confirming the existence of the dilemma is an essential part of the isolation step in troubleshooting.
34.
Who has the authority to approve waivers that are mission justified?
Correct Answer
B. Unit Commander
Explanation
The Unit Commander has the authority to approve waivers that are mission justified. This means that they have the power to grant exceptions or exemptions to certain rules or requirements if they are necessary for the successful completion of a mission. This authority is specific to the Unit Commander and is not shared with other individuals or higher-ranking officials such as the COMSEC Manager or Wing Commander.
35.
To enrure CRO's are complying with applicable directives and accounting for COMSEC material under their control, the COMSEC manager is required to inspect their accounts at least
Correct Answer
C. Semi-annually
Explanation
The COMSEC manager is responsible for ensuring that CRO's (Custodial Responsible Officers) are following the necessary directives and properly accounting for COMSEC (Communications Security) material. To fulfill this responsibility, the COMSEC manager is required to inspect the CRO's accounts on a semi-annual basis. This means that the inspections should occur twice a year, providing regular oversight and ensuring compliance with the applicable directives.
36.
What rank must primary communications security responsible officers hold?
Correct Answer
A. SSgt
Explanation
Primary communications security responsible officers must hold the rank of SSgt.
37.
Who is responsible for the production and management of cryptographic material within the US government?
Correct Answer
A. Director National Security Agency (DIRNSA)
Explanation
The Director of the National Security Agency (DIRNSA) is responsible for the production and management of cryptographic material within the US government. The NSA is an intelligence agency that is responsible for collecting and analyzing foreign communications and protecting US government communications and information systems. As the head of the NSA, the DIRNSA oversees the development and implementation of cryptographic systems and protocols to ensure the security of sensitive information.
38.
The operational use and control of COMSEC material is overseen and managed by
Correct Answer
A. A controlling authority
Explanation
A controlling authority is responsible for overseeing and managing the operational use and control of COMSEC material. This means that they have the authority to ensure that proper procedures and protocols are followed in order to protect sensitive information and prevent unauthorized access. They play a crucial role in maintaining the security and integrity of COMSEC material and ensuring that it is used in accordance with established guidelines and regulations.
39.
What can detect if a central processing unit (CPU) hardware problem exists?
Correct Answer
B. Power-on-Self-test (POST)
Explanation
The Power-on-Self-test (POST) is a diagnostic program that runs when a computer is turned on to check if all the hardware components, including the CPU, are functioning properly. It detects any hardware problems in the CPU by running a series of tests to ensure that all the components are working correctly. Therefore, the POST is specifically designed to detect if a CPU hardware problem exists.
40.
What is the classification of the combination to any security container?
Correct Answer
D. Always classified to the highest classification of the material within the container
Explanation
The correct answer is always classified to the highest classification of the material within the container. This means that the combination to any security container is always classified at the same level as the highest classified material that is stored within the container. This ensures that the container provides the appropriate level of protection for the sensitive information or materials it contains.
41.
This COMSEC material requires the most strenuous accounting practices by using an accounting control number
Correct Answer
A. Accounting legend code (ALC)-1
Explanation
This COMSEC material requires the most strenuous accounting practices by using an accounting control number. The answer "Accounting legend code (ALC)-1" suggests that ALC-1 is the specific accounting control number that should be used for this COMSEC material. This indicates that the material is of high importance and requires strict accounting procedures to ensure its security and proper handling.
42.
This COMSEC material is accounted for continuously by quanity
Correct Answer
B. ALC-2
Explanation
ALC-2 is the correct answer because it indicates that the COMSEC material is accounted for continuously by quantity. The other accounting legend codes (ALC-1, ALC-3, and ALC-4) do not specify continuous accounting by quantity.
43.
This COMSEC material is NOT required to be tracked on the daily or shift inventory
Correct Answer
D. ALC-4
Explanation
The correct answer is ALC-4. This COMSEC material is not required to be tracked on the daily or shift inventory. This suggests that ALC-4 is either not considered as important or its tracking is not necessary for the daily or shift operations.
44.
AFCOMSEC Form 16 inventories are retained for the current inventory plus how many previous months of inventory?
Correct Answer
C. 6
Explanation
AFCOMSEC Form 16 inventories are retained for the current inventory plus the previous 6 months of inventory. This means that the form includes information on the current inventory as well as the inventory from the past 6 months. This allows for a comprehensive record of inventory to be kept and helps in tracking any changes or discrepancies over time.
45.
This form is considered a daily physical security inventory for your enviroment
Correct Answer
B. SF701
Explanation
SF701 is considered a daily physical security inventory for your environment. This form is used to document and track the physical security measures in place, such as locks, alarms, and access controls. By conducting a daily inventory using SF701, you can ensure that all security measures are functioning properly and identify any potential vulnerabilities or issues that need to be addressed. This helps to maintain a secure environment and protect against unauthorized access or breaches.
46.
At a MINIMUM, how often do you change a cipher lock combination?
Correct Answer
A. Monthly
Explanation
It is recommended to change a cipher lock combination at least once a month to ensure maximum security. Regularly changing the combination reduces the risk of unauthorized access as it limits the time frame for someone to potentially figure out the current combination. This frequent change also prevents any potential security breaches or compromises that may occur over a longer period of time.
47.
What form do you fill out and affix to the inside of the locking drawer when you change a safe combination
Correct Answer
A. SF700
Explanation
When changing a safe combination, you need to fill out and affix the SF700 form to the inside of the locking drawer.
48.
What is the preferred method for listing material on the Air Force COMSEC Form 16?
Correct Answer
D. AlpHabetcally by short title
Explanation
The preferred method for listing material on the Air Force COMSEC Form 16 is alphabetically by short title. This means that the materials should be organized and listed in alphabetical order based on their short titles. This method allows for easy and efficient referencing and retrieval of the materials when needed.
49.
If it is physically impossible to conduct an inventory of a user because of dinstance, the COMSEC manager
Correct Answer
D. Asks the user to verify his or her holding by letter or message
Explanation
If it is physically impossible to conduct an inventory of a user because of distance, the COMSEC manager would ask the user to verify his or her holding by letter or message. This method allows the COMSEC manager to obtain the necessary information from the user without physically being present. It is a practical solution when conducting an inventory in person is not feasible due to distance constraints.
50.
The individual who is required to use and safeguard COMSEC aids while performing official duties is the
Correct Answer
A. User
Explanation
The individual who is required to use and safeguard COMSEC aids while performing official duties is the user. This means that the person is responsible for utilizing and protecting communication security equipment and materials in their role. They must follow proper procedures and protocols to ensure the confidentiality and integrity of sensitive information. The user plays a crucial role in maintaining the security of communication systems and preventing unauthorized access or disclosure.