Question 1

John wants to choose optimal hardware for his operating system. Which of the following can provide dependable information on compatibility between OS and hardware devices?
A)MCL
B)HCL
C)SCL
D)RCL

Accepted Answer

John should use HCL, or the Hardware Compatibility List, to choose optimal hardware for his operating system.
Key Takeaway: Hardware Compatibility List, or HCL, is a list of computer hardware that is compatible with a particular operating system. The hardware components listed on the HCL are extensively tested with the operating systems by the manufacturer.

Question 2

Jack wants to use a memory module on his server setup that uses a checksum operation. Which of these memory types should he use?
A)Extended ECC
B)Expanded ECC
C)ECC
D)Non ECC

Accepted Answer

Jack should use an Extended ECC memory module on his server setup to be able to use the checksum operation.
Key Takeaway: All memory devices are configured as N x 4 bits. If the memory hardware failure occurs in the memory device, four bits of data are lost. Therefore, if data is stored in contiguous memory locations, a failure in the memory device causes a 4-bit error, in which case the erratic data cannot be restored. Extended ECC stores data in noncontiguous memory locations. If the memory device breaks down, a 1-bit error will occur at four locations. Since 1-bit errors can be corrected reliably by ECC, data can be restored, even when a memory device breaks down.

Question 3

John needs to connect eight servers to a disk drive array with 250 HDDs. Which of the following should he use?
A)Ultra ATA-3
B)Fiber Channel
C)IEEE 1394
D)USB

Accepted Answer

John should use Fiber Channel to connect eight servers to a disk drive array with 250 HDDs.
Key Takeaway: Fiber Channel, also known as FC, is a gigabit-speed network technology primarily used for storage networking. Fiber Channel products are available at 1 Gbit/s, 2 Gbit/s, 4 Gbit/s, 8 Gbit/s, 10 Gbit/s, and 20 Gbit/s.

Question 4

Which of the following factors are considered when determining the best UPS size and type for a new server?
A)Voltage − Amperes
B)Voltage /Amperes
C)Voltage + Amperes
D)Voltage * Amperes

Accepted Answer

To determine the best UPS size and type, one must calculate the Voltage*Amperes factor.
Key Takeaway: The load that a UPS can handle is the product of the voltage and the current. This product is best known as Volt-Ampere, or VA.

Question 5

Which of the following situations specify when the BIOS should be updated?
A)After adding more RAM
B)When you have added a new monitor
C)After upgrading to newer, faster processors
D)As soon as an update is available from the motherboard manufacturer

Accepted Answer

BIOS should be updated after upgrading to newer, faster processors.
Key Takeaway: There are times when a server will be updated with newer, faster processors. The updated BIOS version enhances the functionalities of the server. This update should be done only if it enhances the existing functionalities.

Question 6

Which of the following specifies the benefits of a rack-mounted server?
A)It cools down servers.
B)It is more affordable.
C)It provides redundancy.
D)It optimizes server space.

Accepted Answer

Rack-mounted servers are used to optimize space needed to place the server.
Key Takeaway: A rack-mounted server is a computer built into a special case, instead of a stand-alone case, like a desktop or tower case. This can be slotted into an industry standard 19-inch equipment rack. For servers to use this rack format, they need to be in cases that will fit the standard dimensions. The cases need to have mounting brackets at the front with holes drilled in the correct places to match up with the holes on the posts.

Question 7

Which of the following precisely specify the purpose of using redundant NICs on a server?
A)To reduce network traffic.
B)To increase the speed of the server.
C)To keep the network available in the event that one NIC fails.
D)To reduce the amount of data loss when packets are transferred.

Accepted Answer

Redundant NICs are used to keep the network available or up in case the operational NIC fails.
Key Takeaway: Redundant NICs provide fault tolerance for the network connection. If one of the network cards fails, the other keeps the network available. This is one of the standard ways of ensuring a high uptime for a server. The only requirement is that the server should support multiple NICs.

Question 8

You want to implement a Fiber Channel infrastructure between two branch offices that that are 4 km apart. Which of the following Fiber Channel cables should you use?
A)Multimode cable
B)Duplex cable
C)Simplex cable
D)Single-mode cable

Accepted Answer

To implement a Fiber Channel infrastructure between two branch offices that that are 4 km apart, you should use single-mode cable.
Key Takeaway: Single-mode cable is used for setups that are over 550 meters. The transmission distance for a single-mode cable is much higher than that of other cable types. It is a single stand of glass fiber with a diameter of 8.3 to 10 microns that has one mode of transmission.

Question 9

Which of the following RAID implementation types does not provide redundancy?
A)RAID 1
B)RAID 0
C)RAID 3
D)RAID 5

Accepted Answer

The RAID 0 implementation type does not provide redundancy.
Key Takeaway: RAID 0 is a RAID implementation type that stripes across all disks. This improves disk access speeds, but does not provide redundancy. If one disk fails, all data on the array will be lost. A RAID 0 array requires a minimum of two drives.

Question 10

Which of the following active offsite storage backup facilities is continuously connected to the server that is currently operating?
A)Warm site
B)Cold site
C)Hot site
D)Continuous site

Accepted Answer

Hot site is continuously connected to the server that is currently operating.
Key Takeaway: Hot sites preserve a virtual mirror image of the current data. It can often be brought up to full production in no more than a few hours. This type of backup site is the most expensive to operate. It is very popular with companies that operate on real time processes.

Question 11

David wants to check the maximum transfer rate of his network. Which of the following counters should he use from the network interface bottleneck monitoring tool?
A)Packets Outbound Discarded
B)Output Queue Length
C)Bytes Total/sec
D)Current Bandwidth

Accepted Answer

David should use the Current Bandwidth counter to check the maximum transfer rate of his network.
Key Takeaway: The Current Bandwidth counter is a common counter found on almost all network performance monitoring tools. Although this counter displays a theoretical bandwidth value rather than a practical one, it can be helpful in isolating network performance related issues.

Question 12

Which of the following hard drive parameters indicate the symptoms of a server bottleneck?
A)Percentage disk time greater than 50% and Avg. Read Queue Length of 4
B)Percentage disk time greater than 50% and Avg. Read Queue Length of 3
C)Percentage disk time greater than 40% and Avg. Read Queue Length of 4
D)Avg. Write Queue Length of 1 and Avg. Read Queue Length of 4

Accepted Answer

The hard drive parameters indicate a serve bottleneck when percentage disk time greater than 50% and Avg. Read Queue Length of 4.
Key Takeaway: A server bottleneck is said to have occurred when the hard drive parameters collectively indicate percentage disk time is greater than 50% Avg., Write Queue Length is 2 or greater, and when the Avg. Read Queue Length is 3 or more.

Question 13

David wants to verify whether a host on his network can connect to the internet. Which of the following utilities should he use?
A)TRACERT
B)NETSTAT
C)NBTSTAT
D)PING

Accepted Answer

David should use the PING utility to verify whether the host on his network can connect to the internet.
Key Takeaway: Ping utility is used to test whether a particular host is reachable across an IP network. It can also be used to measure the round-trip time for packets sent from the local host to a destination computer. It operates by sending an ICMP echo request packet to the target host and waiting for an ICMP response. The use of the ping utility is usually described as pinging a host computer.

Question 14

Which of the following TCP/IP tool returns specifies the details of each path-hop over the network to a specific destination?
A)PING
B)TRACERT
C)NETSTAT
D)IPCONFIG

Accepted Answer

TRACERT utility specifies the details of each path-hop over the network to a specific destination.
Key Takeaway: TRACERT is a utility that displays details about the routers traversed to reach the destination host. TRACERT output displays the path taken, which can be used to pinpoint the location of packet-loss or no-connectivity issues. It typically displays the time taken for the packet to hop from one router to another.

Question 15

John is using a POST card to diagnose a hardware issue on the server. Which of the following POST card operational modes should he use to enable the POST card to initialize itself, without assistance from the server board's BIOS?
A)Basic diagnostics mode
B)Extended diagnostics mode
C)Forced start mode
D)Self start mode

Accepted Answer

John should use the forced start mode to enable the POST card to initialize itself, without assistance from the server board's BIOS.
Key Takeaway: The forced start mode is typically used when troubleshooting a NO POST issue. During the troubleshooting, if the server board is unresponsive, use this mode. In this mode the POST card initializes itself, with no assistance from the BIOS of the server board.

Question 16

Which of the following POST card operational modes should you use if you want to specify the system components that should be tested?
A)Extended Diagnostics mode
B)Forced Start mode
C)Basic Diagnostics mode
D)Advanced Start mode

Accepted Answer

You should use the Extended Diagnostics mode to specify the system components that should be tested.
Key Takeaway: The Extended Diagnostics mode is used when you have to test a selected set of components that you suspect to be faulty. Most POST card applications come with an Extended Diagnostics that is easy to use and menu-driven. This can be used to perform a large array of tests on a system's core components and peripherals that include Memory, CPU, Motherboard, Storage Drives, Network, and I/O Ports.

Question 17

John hears a whining noise when he starts his server. Which of the following could be the most likely issue?
A)Faulty processor
B)Processor failure
C)Faulty RAM
D)Power supply failure

Accepted Answer

John hears a whining noise due to a power supply failure.
Key Takeaway: The origin of a whining noise is a component that is always in motion when the computer is running. In this case, it a power supply fan that keeps rotating to cool down the power supply. This is an indication that these components are starting to experience wear and tear.

Question 18

You are trying to isolate a specific software problem. During which of the following operations, an error occurrence can be categorized as an operational error?
A)When the PC is booting
B)When you are upgrading the operating system
C)When you installing the operating system
D)When the system is booted and you are on the OS

Accepted Answer

A problem that occurs when the system is booted and you are on the OS can be categorized as an operational error.
Key Takeaway: Operating errors are related to the operating system usage and not the installation, upgrade, or booting. An operational error is said to have occurred if the user experiences an error after the system has booted successfully.

Question 19

Which of the following can safely be used to clean dust that has accumulated from inside a server case?
A)Isopropyl Alcohol
B)Water
C)Hydrochloric Acid
D)Compressed air

Accepted Answer

Compressed air should be used to clean dust that has accumulated from inside a server case.
Key Takeaway: Compressed air is kept under a certain pressure, usually greater than that of the atmosphere. It is used as a gas duster for cleaning electronic components that cannot be cleaned with water. It is also called "canned air".

Question 20

Which of the following is the most important security measure for a server room?
A)Cooling
B)Locked server room doors
C)Password complexity
D)Antitheft alarms

Accepted Answer

The most important environmental security issue in a server room is the locked server room door.
Key Takeaway: The most important physical security check should be at the source, i.e. at the entry point to a server room. Hence, the doors of a server should always be locked to avoid data theft. An RFID scanner with restricted access should be placed at the entry point.

Quiz 26: Server

John wants to choose optimal hardware for his operating system. Which of the following can provide dependable information on compatibility between OS and hardware devices?

Jack wants to use a memory module on his server setup that uses a checksum operation. Which of these memory types should he use?

John needs to connect eight servers to a disk drive array with 250 HDDs. Which of the following should he use?

Which of the following factors are considered when determining the best UPS size and type for a new server?

Which of the following situations specify when the BIOS should be updated?

Which of the following specifies the benefits of a rack-mounted server?

Which of the following precisely specify the purpose of using redundant NICs on a server?

You want to implement a Fiber Channel infrastructure between two branch offices that that are 4 km apart. Which of the following Fiber Channel cables should you use?

Which of the following RAID implementation types does not provide redundancy?

Which of the following active offsite storage backup facilities is continuously connected to the server that is currently operating?

David wants to check the maximum transfer rate of his network. Which of the following counters should he use from the network interface bottleneck monitoring tool?

Which of the following hard drive parameters indicate the symptoms of a server bottleneck?

David wants to verify whether a host on his network can connect to the internet. Which of the following utilities should he use?

Which of the following TCP/IP tool returns specifies the details of each path-hop over the network to a specific destination?

John is using a POST card to diagnose a hardware issue on the server. Which of the following POST card operational modes should he use to enable the POST card to initialize itself, without assistance from the server board's BIOS?

Which of the following POST card operational modes should you use if you want to specify the system components that should be tested?

John hears a whining noise when he starts his server. Which of the following could be the most likely issue?

You are trying to isolate a specific software problem. During which of the following operations, an error occurrence can be categorized as an operational error?

Which of the following can safely be used to clean dust that has accumulated from inside a server case?

Which of the following is the most important security measure for a server room?