SK0-005 Practice Test 14 — 15 Questions

Question 1

A technician is installing a new PCIe 4.0 x16 network adapter into a server that has a PCIe 3.0 x16 slot available. The server's BIOS is configured to auto-negotiate PCIe link speed. After installation, the adapter is detected but operates at reduced throughput. Which of the following is the MOST likely reason?

Choose an answer to begin — your selection is scored in the full session.

Accepted Answer

The adapter is operating at PCIe 3.0 speeds due to slot limitations.. The adapter operates at reduced throughput because it is installed in a PCIe 3.0 slot. PCIe is backward compatible, so a PCIe 4.0 adapter will negotiate down to the slot's maximum speed, which is PCIe 3.0. This limits bandwidth but does not prevent operation.

Answer

The BIOS needs to be updated to support PCIe 4.0.

Answer

The adapter is not compatible with the server's chipset.

Answer

The PCIe slot is electrically wired for x8 only.

Question 2

A small business leases a single rack in a colocation facility. The owner wants a disaster recovery arrangement that provides a pre-configured alternate site with power, cooling, and network but where the company must supply and install its own servers after a disaster. Which type of site best matches this requirement?

Accepted Answer

Cold site. A cold site supplies only the physical environment and utilities, leaving hardware procurement and installation to the organization. Because the owner wants a pre-configured space but plans to install company-owned servers after a disaster, a cold site is the correct match. It offers the lowest cost at the expense of longer recovery time.

Answer

Hot site

Answer

Mobile site

Answer

Warm site

Question 3

A server administrator is troubleshooting a Linux server that cannot reach any external websites, but internal resources are accessible. The administrator runs 'ip addr' and sees the correct IP address and subnet mask on eth0. Running 'ip route' shows no default route. What is the most likely cause?

Accepted Answer

The default gateway is not configured.. The correct answer is that the default gateway is not configured. The 'ip route' output shows no default route, which is necessary to reach external networks. Internal resources are accessible because they are on the same subnet, but external traffic cannot be routed. Configuring the default gateway restores external connectivity.

Answer

The network interface is down.

Answer

The DNS server is unreachable.

Answer

A firewall is blocking outbound traffic.

Question 4

A server administrator is installing a new internal tape drive into a server that will be used for backups. The server has an available parallel SCSI (SPI) interface on the motherboard. The administrator connects the tape drive to the SCSI bus but forgets to install a terminator on the last device. Which of the following is the MOST likely result?

Accepted Answer

The SCSI bus will experience signal reflection and data corruption.. Missing termination on a parallel SCSI bus causes signal reflection, leading to data corruption and errors. Termination is required at both ends of the bus to maintain signal integrity. The tape drive may be detected but will likely experience intermittent failures during backups.

Answer

The tape drive will operate at reduced speed but without errors.

Answer

The tape drive will not be detected by the operating system.

Answer

The server will fail to POST.

Question 5

A server administrator is configuring a new Windows Server 2022 failover cluster with two nodes. The cluster will host a highly available file server role. The administrator needs to ensure that the file server role can automatically fail over to the other node if the active node fails. Which of the following should the administrator configure?

Accepted Answer

Highly available file server role in Failover Cluster Manager. The correct answer is to configure a highly available file server role in Failover Cluster Manager. This creates a clustered role that includes all necessary resources and enables automatic failover between cluster nodes. Other options like CSV, file share witness, or DFSR serve different purposes and do not directly provide automatic failover for a file server role.

Answer

Cluster Shared Volume (CSV)

Answer

File Server role with a file share witness

Answer

Distributed File System Replication (DFSR)

Question 6

A datacenter administrator is designing physical security for a new colocation cage that houses servers containing regulated customer data. The cage has a single door, and the administrator wants to ensure that entry is logged and that two authorized staff members must be present for the door to unlock. Which of the following should the administrator implement to meet these requirements?

Accepted Answer

A proximity card reader configured for dual custody with an audit trail. The two-person rule requires an access control method that will not unlock for a single credential. Dual custody configuration on a card reader requires two valid presentations and produces an audit trail, meeting both the presence and logging requirements. Other options either authenticate only one person, rely on shared secrets, or provide no reliable electronic logging.

Answer

A cipher lock with a shared PIN and a door position sensor

Answer

A biometric reader with a mantrap and a fail-safe electric strike

Answer

A mechanical key lock with a keyed access log maintained by the security desk

Question 7

A technician is preparing to install a new server that will use a hardware RAID controller. The server will host a database requiring high write performance and redundancy. Which of the following RAID levels should the technician configure to meet these requirements?

Accepted Answer

RAID 10. RAID 10 provides the best combination of high write performance and redundancy for a database. It stripes data across mirrored pairs, eliminating parity calculations that slow writes in RAID 5. While RAID 1 offers redundancy, its write performance is lower. RAID 0 lacks redundancy, and RAID 5 has write penalties. Thus, RAID 10 is the appropriate choice.

Answer

RAID 1

Answer

RAID 0

Answer

RAID 5

Question 8

A server administrator is replacing a failed hot-swap SAS drive in a RAID 5 array. The drive bay is labeled with the failed drive's slot number, and the array is currently degraded. The administrator pulls the drive but realizes the replacement drive is a 4TB SAS drive while the failed unit was 2TB, and the remaining drives in the array are 2TB. The controller supports online capacity expansion but the array is not configured for it. Which of the following should the administrator do?

Accepted Answer

Insert a 2TB SAS drive matching the existing members and allow the array to rebuild. In a RAID 5 array every member drive contributes the same amount of usable capacity, and the array size is bounded by the smallest drive. A matching 2TB SAS replacement rebuilds the missing data from parity and restores redundancy without unused space or unsupported expansion steps. Larger drives can be used, but only if capacity expansion is configured and performed after the rebuild completes.

Answer

Insert the 4TB drive and then run an offline capacity expansion to grow the array

Answer

Insert the 4TB drive and let the controller rebuild the array at 4TB capacity

Answer

Replace all remaining 2TB drives with 4TB drives simultaneously to match the new drive

Question 9

A server administrator is configuring a Windows Server 2022 as an iSCSI target. The server will provide storage to multiple iSCSI initiators. The administrator wants to ensure that only authorized initiators can access the storage and that data is encrypted in transit. Which of the following should the administrator configure?

Accepted Answer

Enable CHAP authentication and IPsec encryption.. To secure iSCSI storage, authentication and encryption are essential. CHAP authenticates initiators, preventing unauthorized access. IPsec encrypts data in transit, ensuring confidentiality. Other options either use inappropriate protocols (SMB, Kerberos) or only provide partial security (ACLs without authentication).

Answer

Configure mutual CHAP and enable SMB signing.

Answer

Use Kerberos authentication and enable BitLocker on the target volumes.

Answer

Enable IPsec and configure access control lists (ACLs) on the target.

Question 10

A server administrator is troubleshooting a Windows Server 2022 that is experiencing performance issues. The administrator suspects a disk bottleneck. Which of the following Performance Monitor counters should the administrator review to identify the average time that read and write operations take on the physical disk?

Accepted Answer

Avg. Disk sec/Transfer. Avg. Disk sec/Transfer is the correct counter because it directly measures the average time taken for disk transfers, encompassing both reads and writes. This counter is essential for identifying disk latency and bottlenecks. Other counters measure rate or queue length, which are indirect indicators and do not provide the average time per operation.

Answer

Avg. Disk Queue Length

Answer

Current Disk Queue Length

Answer

Disk Transfers/sec

Question 11

A server administrator is configuring a new Linux server that will run a critical web application. The administrator needs to ensure that the web service automatically starts if the server reboots and restarts if it crashes. The server uses systemd. Which of the following should the administrator do?

Accepted Answer

Create a systemd service unit with Restart=always and enable it with systemctl enable.. Using a systemd service unit with Restart=always and enabling it is the correct method. systemd provides built-in service management, including automatic restart on failure and start on boot. This is the standard and most reliable way to ensure a critical service remains available on modern Linux servers.

Answer

Add the service to /etc/rc.local and use a cron job to check and restart it.

Answer

Use the nohup command to run the service in the background and add it to the root crontab with @reboot.

Answer

Configure the service as a SysV init script and use chkconfig to enable it.

Question 12

A server administrator is configuring a new Windows Server 2022 server that will host a database. The server has four 10 TB SAS drives and a hardware RAID controller. The administrator needs to maximize performance for random reads and writes while providing redundancy. Which RAID level should the administrator implement?

Accepted Answer

RAID 10. RAID 10 stripes data across multiple mirrored pairs, delivering high random read and write performance while providing redundancy. For a database server with four drives, RAID 10 utilizes all drives for both performance and fault tolerance, unlike RAID 1 which uses only two drives for a single mirror, or RAID 5 which incurs write penalties due to parity. RAID 0 lacks redundancy, so it is not suitable.

Answer

RAID 0

Answer

RAID 5

Answer

RAID 1

Question 13

A server administrator needs to deploy a new Windows Server 2022 server that will run a critical application. The application requires high availability and automatic failover. The administrator has two identical physical servers and a SAN. Which Windows Server feature should the administrator implement?

Accepted Answer

Failover Clustering. Failover Clustering is the Windows Server feature designed to provide high availability and automatic failover for applications and services. When combined with shared storage such as a SAN, it allows applications to move between nodes seamlessly if a failure occurs. The other options either provide network load balancing, storage virtualization, or file replication, but not application failover.

Answer

Network Load Balancing (NLB)

Answer

Storage Spaces Direct

Answer

Distributed File System Replication (DFSR)

Question 14

A server administrator is configuring a Linux server to use iSCSI storage. The server has two network interfaces, eth0 and eth1, connected to the same switch. The administrator wants to ensure that iSCSI traffic is isolated from regular network traffic and that the iSCSI initiator uses both interfaces for redundancy and increased throughput. Which of the following should the administrator implement?

Accepted Answer

Configure VLAN tagging on eth0 and eth1 for iSCSI traffic and use multipathing with both interfaces.. To isolate iSCSI traffic and provide redundancy and throughput, the administrator should use VLAN tagging to separate iSCSI traffic on its own VLAN, and configure multipathing with both network interfaces. This allows the iSCSI initiator to use multiple paths, improving performance and fault tolerance, while keeping storage traffic separate from regular network traffic.

Answer

Configure link aggregation (bonding) on eth0 and eth1 and assign the iSCSI traffic to the bond interface.

Answer

Create a bridge interface between eth0 and eth1 and assign the iSCSI traffic to the bridge.

Answer

Enable jumbo frames on eth0 and eth1 and configure a single iSCSI session over eth0.

Question 15

A datacenter administrator is preparing to decommission a rack of servers that stored customer financial records. Company policy requires that data be rendered unrecoverable before the servers leave the facility, and the servers will be resold to a third party. Which action best satisfies the policy?

Accepted Answer

Run the manufacturer's secure erase utility and verify completion on each drive.. The policy demands unrecoverable destruction of financial data while the hardware is resold. A manufacturer secure erase physically or cryptographically erases the media and can be verified, satisfying both goals. Quick formatting leaves recoverable data, locked storage does not destroy anything, and degaussing destroys the drives needed for resale.

Answer

Delete all partitions and format each drive with a quick format.

Answer

Remove the drives and store them in a locked cabinet on site.

Answer

Degauss the drives before returning them to the reseller.