Prepare Top GAQM CDCS-001 Exam Study Guide Practice Questions Edition [Q18-Q33]

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Prepare Top GAQM CDCS-001 Exam Study Guide Practice Questions Edition

Go to CDCS-001 Questions – Try CDCS-001 dumps pdf

Upon successful completion of the GAQM CDCS-001 Certification Exam, candidates will be awarded the Certified Data Centre Specialist (CDCS) certification. Certified Data Centre Specialist (CDCS) certification is proof of the candidate’s knowledge and expertise in the field of data centre management and operations, and is recognized by employers and industry professionals around the world.

GAQM CDCS-001 Exam covers a wide range of topics, including data center design, power and cooling systems, security, and disaster recovery. CDCS-001 exam also tests a candidate’s ability to manage and monitor data center operations, as well as their understanding of industry standards and best practices. To earn the certification, candidates must pass a rigorous exam that evaluates their knowledge and skills in these areas.

QUESTION 18
Which type of power can be a source available to the data center that takes over the function of supplying when utility power is unavailable?

Standby

Passive

Active

Alternate

Explanation
Standby power, also known as backup power, is a type of power that can be a source available to the data center that takes over the function of supplying when utility power is unavailable. Standby power systems are designed to provide power to critical loads in the event of a power outage, and can include generators, uninterruptible power supplies (UPS), and batteries. Standby power systems can be used to provide power to the data center for a short period of time, such as a few hours or days, until utility power is restored.
Passive, Active and Alternate are not specific type of power sources used in data center. They are terms used in different context and have different meaning.

QUESTION 19
Which mounted system is used to cool small IT environments?

Air Mounted System

Chilled Mounted System

Ceiling Mounted System

Floor Mounted System

Explanation
An air mounted system is often used to cool small IT environments. This type of cooling system is typically mounted on the wall or ceiling and works by blowing cool air into the room to lower the temperature. Air mounted systems are compact, easy to install and maintain, and can be a cost-effective solution for small spaces.

QUESTION 20
Which component is designed to protect electrical equipment from damage caused by overload or short circuit?

Transfer Switch

Stabiliser

Transient

Circuit Breaker

Explanation
A circuit breaker is a device designed to protect electrical equipment from damage caused by overload or short circuit. Circuit breakers are designed to detect when too much current is flowing through a circuit and to shut the circuit off when that happens. This protects the equipment from damage due to overloading or short circuiting, and it also helps prevent fires and other accidents.

QUESTION 21
____________ is a systematic variation of the voltage wave form or a series of random voltage changes of small dimensions.

Voltage fluctuation

Voltage truncation

Frequency variation

Standby variation

Explanation
Voltage fluctuation is a systematic variation of the voltage waveform or a series of random voltage changes of small dimensions that occur over a period of time. Voltage fluctuation can be caused by a variety of factors, such as changes in demand, changes in the power system, faults on the power system, or the switching of large loads.

QUESTION 22
Which one of the following describes the amount of resistance electricity encounters?

Watts

Volts

Ohm

Ampere

Explanation
Ohm () describes the amount of resistance electricity encounters. It is one of the base units of the International System of Units (SI), and is defined as the amount of resistance that a conductor has when a force of one volt is applied across it. Ohms are used to measure the electrical resistance of a circuit, and can be used to determine the power of a circuit or the amount of current flowing through it.

QUESTION 23
Which system in Air Distribution System takes the hot exhaust air from the IT equipment to the CRAC

Return system

Supply system

Maintenance system

Regulation system

Explanation
The return system in an air distribution system takes the hot exhaust air from the IT equipment and returns it to the Computer Room Air Conditioner (CRAC) unit. The CRAC unit cools the hot exhaust air and recirculates it back into the data center. The return system typically includes ducts, grills, and other components that allow the hot air to be efficiently and effectively returned to the CRAC unit.
Supply system is responsible for bringing in the cooled and filtered air from the CRAC unit to the data center.
Maintenance system and regulation system are not related to air distribution system in the data center.

QUESTION 24
Which one of the following is an advantage of Glycol Cooled System?

No additional cost is required

No maintenance of glycol

Glycol pipes can run long distances and can service several CRAC units

Can be used in big data centers

Explanation
Glycol cooled systems are advantageous because they are efficient and can service large data centers with multiple racks. Furthermore, glycol pipes can run long distances, allowing a single system to service several CRAC units. This eliminates the need for multiple systems, resulting in cost savings and reduced maintenance.

QUESTION 25
Which power distribution component is often used when many electrical devices are enclosed proximity especially with audio, video and computers?

Power distribution units (PDU)

Outlet strips

Server plug

Backup server

Explanation
The best option for enclosing many electrical devices in proximity, especially with audio, video and computers, is Power Distribution Units (PDUs). PDUs are designed to provide power to multiple devices using a single power source, such as a wall outlet or a generator, while providing protection against power surges.
PDUs are generally equipped with multiple outlets to allow for a variety of electrical devices to be connected and powered simultaneously.

QUESTION 26
Which one of the following is an advantage of using Natural Gas?

Minimum carbon build up

Maximum carbon build up

Tends to cost more

More exhaust able

Explanation
The main advantage of using natural gas is that it tends to produce fewer carbon emissions than other fossil fuels, such as coal or oil. Natural gas combustion produces less carbon dioxide and other pollutants than other fuels, making it a cleaner and more renewable source of energy. Additionally, natural gas costs less than other fuels, making it a more cost-effective option.

QUESTION 27
Which one of the following measures the real power drawn by the load equipment?

Watts

Amps

Volts

Amperes

Explanation
Watts measures the real power drawn by the load equipment and is determined by multiplying the volts and amps of the load

QUESTION 28
True or False: Human error is a major cause of data center downtime

True

False

Explanation
Human error is a major cause of data center downtime. Human mistakes are one of the top causes of data center outages, accounting for around one-third of all downtime incidents. Common causes of human error in data centers include misconfiguration, inadequate maintenance, and improper security practices. To reduce the risk of human error, it is important to ensure that data center staff receive proper training, have adequate access control measures in place, and are familiar with best practices for data center operations.

QUESTION 29
The distance that a signal’s energy can travel in the time it takes for one cycle to occur is called the signal’s:

amplitude

frequency

wavelength

period

Explanation
Wavelength is a measure of the distance that a signal’s energy can travel in the time it takes for one cycle of the signal to occur. It is calculated by dividing the speed of light by the frequency of the signal. Wavelength is generally expressed in meters (m).

QUESTION 30
How many approaches are there to remove unwanted heat from an IT environment?

Four

Five

Six

Seven

Explanation
There are five common approaches to removing unwanted heat from an IT environment:
* Air conditioning: using mechanical cooling to remove heat from the air.
* Air economization: using outside air to cool the IT environment when the temperature is cooler than the desired temperature inside the data center.
* Liquid cooling: using a liquid coolant to absorb and remove heat from IT equipment.
* Evaporative cooling: using water evaporation to cool the air.
* Immersion cooling: submerging IT equipment in a liquid coolant to remove heat.

QUESTION 31
Which type of Circuit Breaker uses an electromagnetic coil to pull a switch when a circuit carries too much current?

Thermal

Magnetic

Pull

Static

Explanation
Magnetic circuit breakers use an electromagnetic coil to pull a switch when a circuit carries too much current, thus tripping the circuit and preventing it from exceeding its rated amperage.

QUESTION 32
______________ security means keeping unauthorized or ill-intentioned people out of places that they do not belong.

Logical

Topological

Network

Physical

Explanation
Physical security means keeping unauthorized or ill-intentioned people out of places that they do not belong.
This can involve a variety of measures, such as locks, alarms, access control systems, cameras, and guards.
Physical security is an important part of any security system, as it helps to protect valuable assets and personnel from theft, vandalism, and other malicious activities.

QUESTION 33
Which one of the following uses sensors such as laser beams or touch sensor?

CCTV

Server

Alarms

Backup device

Explanation
Alarms are physical security devices that use sensors such as laser beams or touch sensors to detect movement or intrusion. These devices are used to alert the user of any unauthorized activity in the area. Alarms can also be used in combination with CCTV cameras to provide a comprehensive security system.

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