2024 Updated Verified Pass CDCS-001 Exam - Real Questions and Answers
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NEW QUESTION # 13
If a waveform period is determined to be 10 microseconds in duration, what is the frequency of the signal?
- A. 100 kHz
- B. 100 Hz
- C. 1000 Hz
- D. 10 kHz
Answer: A
Explanation:
Explanation
Frequency is the inverse of period, so to calculate the frequency of a signal with a period of 10 microseconds, you would divide 1 by the period, which is equal to 100 kHz.
NEW QUESTION # 14
What is a Data Center?
- A. A building or a portion of a building whose primary function is to house a computer room and its related support areas
- B. A building or a portion of a building where debugging takes place
- C. A room in a building dedicated to monitoring data and information.
- D. A building or portion of a building whose primary function is to research new data.
Answer: A
Explanation:
Explanation
A building or a portion of a building whose primary function is to house a computer room and its related support areas. A Data Center is a secure, temperature-controlled environment that houses computer systems, equipment, and associated components. It is typically used to store, process, and distribute large amounts of data and information. Data Centers typically include server racks, storage arrays, network switches, firewalls, and other components necessary for the operation of computer systems.
NEW QUESTION # 15
______________ security means keeping unauthorized or ill-intentioned people out of places that they do not belong.
- A. Network
- B. Topological
- C. Physical
- D. Logical
Answer: C
Explanation:
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.
NEW QUESTION # 16
Which power distribution component is often used when many electrical devices are enclosed proximity especially with audio, video and computers?
- A. Outlet strips
- B. Backup server
- C. Power distribution units (PDU)
- D. Server plug
Answer: C
Explanation:
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.
NEW QUESTION # 17
Which one of the following is an advantage of Glycol Cooled System?
- A. No additional cost is required
- B. Glycol pipes can run long distances and can service several CRAC units
- C. Can be used in big data centers
- D. No maintenance of glycol
Answer: B
Explanation:
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.
NEW QUESTION # 18
Which one of the following is an advantage of Air Cooled Self-Contained System?
- A. Lowest installation cost
- B. It doesn't requires ductwork and/or dropped ceiling
- C. It has more heat removal capacity per unit
- D. All components contain more than one unit
Answer: B
Explanation:
Explanation
Air cooled self-contained systems are highly efficient and do not require ductwork and/or dropped ceiling for installation. This makes them a great choice for locations where installation costs are a major factor, such as in residential applications, or in places with limited space. Additionally, air cooled self-contained systems have more heat removal capacity per unit compared to water cooled systems, making them more cost-effective in the long run.
NEW QUESTION # 19
Which one of the following is a disadvantage of Water Cooled System?
- A. Usage of the building's condenser water is less expensive than chilled water
- B. Condenser water piping loops long distances
- C. All components are located inside the CRAC
- D. Introduces an additional source of liquid
Answer: D
Explanation:
Explanation
Water cooled systems introduce an additional source of liquid, which can be a potential source of contamination and damage to the IT equipment. Additionally, water cooled systems require more maintenance than air cooled systems and are more expensive to install due to the additional cost of the cooling tower, piping, and pumps.
NEW QUESTION # 20
Which one of the following controls the voltage produced at the output of the alternator?
- A. Voltage Meter
- B. Voltage Stabilizer
- C. Voltage Regulator
- D. Voltage Backup Device
Answer: C
Explanation:
Explanation
A voltage regulator controls the voltage produced at the output of the alternator. It's a device that maintains the output voltage of an alternating current (AC) power source within a safe range. The voltage regulator compares the actual output voltage to the desired voltage level and adjusts the voltage accordingly.
Voltage Meter, Voltage Stabilizer, and Voltage Backup Device are not devices that control the voltage produced at the output of the alternator. They are different types of equipment and have different functions.
A voltage meter is a device used to measure the voltage in an electrical circuit. A voltage stabilizer is an electronic device that maintains a constant voltage level. A voltage backup device is a device that provides temporary backup power in case of an electrical outage.
NEW QUESTION # 21
Whenever electrical power is being consumed in an IT room or data center. __________ is generated.
- A. Heat
- B. Condensation
- C. Static electricity
- D. Humidity
Answer: A
Explanation:
Explanation
Whenever electrical power is being consumed in an IT room or data center, heat is generated. This heat must be removed in order to maintain an optimal temperature for the equipment, and this is usually done through cooling systems such as air conditioning, air economization, liquid cooling, evaporative cooling, and immersion cooling.
NEW QUESTION # 22
Which type of outlet is used for non-computing devices?
- A. Grounding
- B. Convenience
- C. Harmonic
- D. Static
Answer: B
Explanation:
Explanation
Convenience outlets, also known as duplex receptacles or wall outlets, are used to provide power to non-computing devices, such as lamps, televisions, and other household appliances. They are typically found in residential and commercial buildings and are connected to a circuit breaker or fuse for protection against overloading and electrical fires
NEW QUESTION # 23
True or False: Fuel availability generally dictates the type of standby generator selected
- A. True
- B. False
Answer: A
Explanation:
Explanation
Fuel availability generally dictates the type of standby generator selected as different types of generators use different types of fuel. For example, gasoline generators are typically used in residential or small commercial applications, while diesel generators are usually used in larger industrial and commercial applications. Propane or natural gas generators may also be used, depending on the availability of fuel sources.
NEW QUESTION # 24
Which one of the following uses sensors such as laser beams or touch sensor?
- A. Server
- B. Alarms
- C. Backup device
- D. CCTV
Answer: B
Explanation:
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.
NEW QUESTION # 25
How many approaches are there to remove unwanted heat from an IT environment?
- A. Four
- B. Seven
- C. Five
- D. Six
Answer: C
Explanation:
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.
NEW QUESTION # 26
Which one of the following is an overall consideration for physical security?
- A. Define the problem
- B. Apply the technology
- C. Identify the problem
- D. Apply the solution
Answer: A
Explanation:
Explanation
Defining the problem is an important overall consideration for physical security. This process involves identifying and analyzing the threats and vulnerabilities that could potentially affect the security of the system, as well as determining what steps need to be taken to mitigate these risks. This process should be done before any other steps are taken to ensure physical security, as it helps to ensure that the security measures are tailored to the specific needs of the system.
NEW QUESTION # 27
What are the two main applications for ac (alternate current)?
- A. electric, magnetic
- B. direct, pulsating
- C. power, information
- D. static, dynamic
Answer: C
Explanation:
Explanation
The two main applications for AC (alternate current) are power and information. AC is used to generate and transfer power to electrical devices, and is also used to carry information signals in telecommunications.
NEW QUESTION # 28
Which mounted system is used to cool small IT environments?
- A. Ceiling Mounted System
- B. Air Mounted System
- C. Chilled Mounted System
- D. Floor Mounted System
Answer: B
Explanation:
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.
NEW QUESTION # 29
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