An administrator is configuring a server that will host a high-performance financial application. Which of the following disk types will serve this purpose?
Which of the following is the MOST secure method to access servers located in remote branch offices?
Correct Answer: A
This is the most secure method to access servers located in remote branch offices because MFA stands for multi-factor authentication, which requires users to provide more than one piece of evidence to prove their identity. An out-of-band solution means that one of the factors is delivered through a separate channel, such as a phone call, a text message, or an email. This adds an extra layer of security and prevents unauthorized access even if a password is compromised. References: https://docs.microsoft.com/en-us/azure/active-directory/authentication/concept-mfa-howitworks
Question 88
Which of the following backup types only backs up files that have changed since the last full backup?
Correct Answer: A
Understanding different backup types is crucial for effective data protection strategies. Here's a breakdown of the relevant backup methods: * Full Backup: Captures all data, regardless of previous backups. * Differential Backup: Backs up data that has changed since the last full backup. * Incremental Backup: Backs up data that has changed since the last backup, whether it was full or incremental. * Snapshot: Captures the state of a system at a specific point in time. A Differential Backup starts with a full backup. Subsequent differential backups save copies of all files that have been modified since that full backup. This means each differential backup includes all changes made since the last full backup, leading to larger backup sizes over time but faster restoration, as only the last full backup and the latest differential backup are needed. In contrast, an Incremental Backup also begins with a full backup, but each subsequent backup only includes data that has changed since the most recent backup (whether full or incremental). This approach results in smaller backup sizes and quicker backup processes. However, restoration can be slower and more complex, as it requires the last full backup and all subsequent incremental backups to fully restore data. Therefore, the correct answer is A. Differential, as it specifically refers to backing up files that have changed since the last full backup. References: CompTIA Server+ Certification Exam Objectives (SK0-005): Backup Methods CompTIA Server+ (SK0-005) Study Guide: Chapter on Security and Disaster Recovery
Question 89
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 ipconf ig: The application server is reading the following output from ipconf ig: Which of the following most likely contains an error?
Correct Answer: D
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. References: [CompTIA Server+ Certification Exam Objectives], Domain 4.0: Networking, Objective 4.1: Given a scenario, configure network settings for servers.
Question 90
A technician set up a new multifunction printer. After adding the printer to the print server, the technician configured the printer on each user's machine. Several days later, users reported that they were no longer able to print, but scanning to email worked. Which of the following is most likely causing this issue?
Correct Answer: D
The most likely cause of this issue is that the printer had DHCP enabled, which changed its IP address after adding it to the print server and configuring it on each user's machine. DHCP (Dynamic Host Configuration Protocol) is a network protocol that assigns IP addresses and other network configuration parameters to devices automatically, without manual intervention. DHCP can simplify network management and avoid IP conflicts, but it can also cause problems if the devices are not configured to use static or reserved IP addresses. If the printer had DHCP enabled, it might have received a different IP address from the DHCP server after rebooting or reconnecting to the network, which would make it unreachable by the print server and the users' machines that were configured with the previous IP address. Scanning to email would still work, as it does not depend on the print server or the users' machines, but on the printer's SMTP settings and internet connection. References: [CompTIA Server+ Certification Exam Objectives], Domain 4.0: Networking, Objective 4.l: Given a scenario, configure network settings for servers.
