Practice Free SK0-005 Exam Online Questions
A systems administrator is setting up a server farm for a new company. The company has a public range of IP addresses and uses the addresses internally.
Which of the following IP addresses best fits this scenario?
- A . 10.3.7.27
- B . 127.0.0.1
- C . 192.168.7.1
- D . 216.176.128.10
D
Explanation:
The IP address 216.176.128.10 falls within the range of public IP addresses, which are routable over the Internet. Since the company is using a public range of IP addresses internally, this address is suitable for the scenario. In contrast, 10.3.7.27 and 192.168.7.1 are private IP addresses typically used within internal networks and not routable on the public Internet. 127.0.0.1 is known as the loopback address, used by a computer to communicate with itself and not suitable for assigning to devices within a network.
A company is building a new datacenter next to a busy parking lot.
Which of the following is the BEST strategy to ensure wayward vehicle traffic does not interfere with datacenter operations?
- A . Install security cameras
- B . Utilize security guards
- C . Install bollards
- D . Install a mantrap
C
Explanation:
The best strategy to ensure wayward vehicle traffic does not interfere with datacenter operations is to install bollards. Bollards are sturdy posts that are installed around a perimeter to prevent vehicles from entering or crashing into a protected area. Bollards can provide physical security and deterrence for datacenters that are located near busy roads or parking lots. Bollards can also prevent accidental damage or injury caused by vehicles that lose control or have faulty brakes.
A company created a new DR plan. The management team would like to begin performing a review of this plan without endangering company data and with a minimal time commitment.
Which of the following testing methods would best allow for this type of review?
- A . Simulated
- B . Tabletop
- C . Live
- D . Non-production
B
Explanation:
Tabletop testing is a method of reviewing a DR plan without endangering company data and with a minimal time commitment. Tabletop testing involves a simulated scenario where the participants discuss their roles and responsibilities, identify potential issues, and evaluate the effectiveness of the plan. Simulated, live, and non-production testing are methods that involve more time and resources, and may pose some risks to company data.
Reference: [CompTIA Server+ Certification Exam Objectives], Domain 6.0: Disaster Recovery, Objective 6.3: Compare and contrast various backup techniques.
An application server cannot communicate with a newly installed database server.
The database server, which has static IP information, is reading the following output from ipconfig:
The application server is reading the following output from ipconf ig:
Which of the following most likely contains an error?
- A . IP address
- B . DHCP
- C . Gateway
- D . Subnet mask
A
Explanation:
The subnet mask is most likely containing an error that prevents the application server from communicating with the newly installed database server. The subnet mask is a binary number that defines how many bits of an IP address are used for the network portion and how many bits are used for the host portion. The subnet mask determines which devices belong to the same network or subnet and can communicate directly with each other without routing or switching devices. The subnet mask of the database server is 255.255.O.O, which means that all 32 bits of its IP address are used for the network portion and none for the host portion, which is invalid and makes it unreachable by any other device on any network or subnet. The subnet mask of the application server is 255.O.O.O, which means that only 8 bits of its IP address are used for the network portion and 24 bits are used for the host portion, which is also uncommon and makes it incompatible with most networks or subnets.
Reference: [CompTIA Server+ Certification Exam Objectives], Domain 4.0: Networking, Objective 4.1: Given a scenario, configure network settings for servers.
A server technician installs a new NIC on a server and configures the NIC for IP connectivity. The technician then tests the connection using the ping command.
Given the following partial output of the ping and ipconfig commands:
Which of the following caused the issue?
- A . Duplicate IP address
- B . Incorrect default gateway
- C . DHCP misconfiguration
- D . Incorrect routing table
A
Explanation:
The ping command output shows that the NIC has an IP address of 192.168.1.100 and a default gateway of 192.168.1.1. However, when the technician tries to ping the default gateway, the reply comes from another IP address: 192.168.1.101. This means that there is another device on the network that has the same IP address as the default gateway, and it is responding to the ping request instead of the intended destination.
A duplicate IP address can cause network connectivity problems, such as packet loss, routing errors, or unreachable hosts. To resolve this issue, the technician should either change the IP address of the
default gateway or the device that is conflicting with it, or use DHCP to assign IP addresses automatically and avoid conflicts.
The other options are not correct because they do not explain the ping output. An incorrect default gateway would cause no reply or a destination unreachable message, not a reply from a different IP address. A DHCP misconfiguration would cause an invalid or no IP address on the NIC, not a duplicate IP address on the network. An incorrect routing table would cause routing errors or unreachable destinations, not a reply from a different IP address.
Reference:
https://askleo.com/what_is_ping_and_what_does_its_output_tell_me/
https://learn.microsoft.com/en-us/windows-server/administration/windows-commands/ping
A server administrator is swapping out the GPU card inside a server.
Which of the following actions should the administrator take FIRST?
- A . Inspect the GPU that is being installed.
- B . Ensure the GPU meets HCL guidelines.
- C . Shut down the server.
- D . Disconnect the power from the rack.
C
Explanation:
The first action that the administrator should take before swapping out the GPU card inside a server is to shut down the server. This is to ensure that the server is not running any processes that might be using the GPU card, and to prevent any damage to the hardware or data loss due to sudden power loss. Shutting down the server also reduces the risk of electrostatic discharge (ESD) that might harm the components.
Reference: https://pcgearhead.com/installing-a-new-gpu/
A security administrator ran a port scanning tool against a virtual server that is hosting a secure website. A list of open ports was provided as documentation. The management team has requested that non-essential ports be disabled on the firewall.
Which of the following ports must remain open?
- A . 25
- B . 53
- C . 443
- D . 3389
- E . 8080
C
Explanation:
HTTPS (Secure Web Traffic): Port 443 is the standard port for HTTPS, which is essential for encrypting communication between web browsers and a secure website. (CompTIA Server+ Objectives SK0-004: 4.1)
Why other options are not essential:
25 (SMTP): Used for email transmission
53 (DNS): Used for domain name resolution
**3389 (RDP): ** Used for remote desktop connections
**8080 (Alternate HTTP): ** Sometimes used for web servers, but not the standard secure port
A server administrator has connected a new server to the network. During testing, the administrator discovers the server is not reachable via server but can be accessed by IP address.
Which of the following steps should the server administrator take NEXT? (Select TWO).
- A . Check the default gateway.
- B . Check the route tables.
- C . Check the hosts file.
- D . Check the DNS server.
- E . Run the ping command.
- F . Run the tracert command
C, D
Explanation:
If the server is not reachable by name but can be accessed by IP address, it means that there is a problem with name resolution. The hosts file and the DNS server are both responsible for mapping hostnames to IP addresses. Therefore, the server administrator should check these two files for any errors or inconsistencies that might prevent the server from being resolved by name.
Reference:
https://www.howtogeek.com/662249/how-to-edit-the-hosts-file-on-linux/
https://www.howtogeek.com/164981/how-to-use-nslookup-to-check-domain-name-information-in-microsoft-windows/
A remote, embedded loT server is having a Linux OS upgrade installed.
Which of the following is the best method to stage the new media for the default boot device of the server?
- A . Copy and send an SSD to the site.
- B . Copy and send a DVD to the site.
- C . Copy and send a SATA drive to the site.
- D . Copy and send a microSD card to the site.
D
Explanation:
A microSD card is the best method to stage the new media for the default boot device of a remote embedded IoT server that is having a Linux OS upgrade installed. A microSD card is a small and portable storage device that can store large amounts of data. It can be easily inserted into the slot of an embedded IoT server, which is a small and low-power device that performs specific tasks and connects to other devices over a network. A microSD card can also be formatted with different file systems, such as FAT32 or ext4, which are compatible with Linux OS.
Reference: CompTIA Server+ Certification Exam Objectives, Domain 4.0: Networking, Objective 4.3: Given a scenario, configure servers for IoT applications.
A technician is installing an OS on ten servers.
Which of the following media installation types would allow for the fastest installation time?
- A . Network
- B . Embedded
- C . Optical
- D . USB
A
Explanation:
Network Installation: Allows the OS image to be deployed from a central server, streamlining deployment across multiple systems simultaneously. This is significantly faster than individual installations from other media. (CompTIA Server+ Objectives SK0-004: 3.1) Why other options are less optimal:
Embedded: Refers to OSes pre-installed on hardware and not intended for mass deployment. Optical (CDs/DVDs): Requires physical media insertion on each server, slower than network distribution.
USB Similar to optical, requires individual installations and can be time-consuming for multiple servers.