Which of the following is a method that is used to prevent motor vehicles from getting too close to building entrances and exits?
Answer : A
Bollards are an example of a method that is used to prevent motor vehicles from getting too close to building entrances and exits. Bollards are short, sturdy posts that are installed on sidewalks, parking lots, or roads to create physical barriers and control traffic flow. Bollards can be used to protect pedestrians, buildings, or other structures from vehicle collisions or attacks. Bollards can be made of various materials, such as metal, concrete, or plastic, and can be fixed, removable, or retractable.
A server administrator is completing an OS installation for a new server. The administrator patches the server with the latest vendor-suggested software, configures DHCP, and verifies all network cables are properly connected in the IDF, but there is no network connectivity. Which of the following is the MOST likely reason for the lack of connectivity?
Answer : A
If the server administrator patches the server with the latest vendor-suggested software, configures DHCP, and verifies all network cables are properly connected in the IDF, but there is no network connectivity, then the most likely reason for the lack of connectivity is that the VLAN is improperly configured. A VLAN (Virtual Local Area Network) is a logical grouping of network devices that share the same broadcast domain and can communicate with each other without routing. If the server is assigned to a different VLAN than the DHCP server or the default gateway, itwill not be able to obtain an IP address or reach other network devices. The DNS configuration is not relevant for network connectivity, as DNS only resolves names to IP addresses. The OS version is not likely to be incompatible with the network switch vendor, as most network switches use standard protocols and interfaces. The HIDS (Host-based Intrusion Detection System) is not likely to prevent the connection, as HIDS only monitors and alerts on suspicious activities on the host. Reference: https://www.howtogeek.com/190014/virtualization-basics-understanding-techniques-and-fundamentals/ https://www.howtogeek.com/164981/how-to-use-nslookup-to-check-domain-name-information-in-microsoft-windows/https://www.howtogeek.com/202794/what-is-an-intrusion-detection-system-ids-and-how-does-it-work/
Network connectivity to a server was lost when it was pulled from the rack during maintenance. Which of the following should the server administrator use to prevent this situation in the future?
Answer : A
The server administrator should use cable management to prevent network connectivity loss when pulling a server from the rack during maintenance. Cablemanagement is a practice of organizing and securing the cables that connect various devices and components in a system. Cable management can help improve airflow, reduce clutter, prevent tangling, and avoid accidental disconnection or damage of cables. Cable management can be done using various tools and techniques, such as cable ties, cable trays, cable labels, cable organizers, or cable ducts.
Hosting data in different regional locations but not moving it for long periods of time describes:
Answer : B
Data at rest refers to data that is stored in a persistent state on any device or media, such as hard drives, tapes, or cloud storage. Data at rest does not move for long periods of time unless it is accessed or modified by authorized users or applications. A cold site (A) is a backup location that has minimal or no equipment and resources to resume business operations in case of a disaster. On-site retention is a policy of keeping backup data on premises for a certain period of time before transferring it to an off-site location. Off-site storage (D) is a method of storing backup data in a remote location that is physically or logically separated from the primary site. Reference: https://docs.microsoft.com/en-us/azure/security/fundamentals/encryption-atrest https://www.techopedia.com/definition/144/cold-site https://www.enterprisestorageforum.com/backup/onsite-offsite-backup.htmlhttps://www.techopedia.com/definition/24195/offsite-storage
A technician recently upgraded several pieces of firmware on a server. Ever since the technician rebooted the server, it no longer communicates with the network. Which of the following should the technician do FIRST to return the server to service as soon as possible?
Answer : D
The first thing that the technician should do to return the server to service as soon as possible is downgrade the NIC firmware. Firmware is a type of software that controls the basic functions of hardware devices, such as network interface cards (NICs). Firmware updates can provide bug fixes, performance improvements, or new features for hardware devices. However, firmware updates can also cause compatibility issues, configuration errors, or functionality failures if they are not installed properly or if they are not compatible with the device model or driver version. Downgrading the firmware means reverting to an older version of firmware that was previously working fine on the device. Downgrading the firmware can help resolve any problems caused by a faulty firmware update and restore normal operation of the device.
A systems engineer is configuring a new VLAN for expansion of a campus network. The engineer configures a new DHCP scope on the existing Windows DHCP server cluster and activates the scope for the clients. However, new clients in the area report they are not receiving any DHCP address information. Which of the following should the engineer do first?
Answer : C
When clients on a different VLAN cannot receive DHCP addresses, it's often because there is noDHCP helper addressconfigured on the router or switch. ADHCP relay/helper addressforwards DHCP requests from clients on the VLAN to the DHCP server, which may reside on a different network.
Confirming the network has a helper address (Answer C):This should be the first step to ensure that DHCP requests from the VLAN are correctly routed to the DHCP server.
Checking client NIC speed (Option A):While important, incorrect NIC speed wouldn't affect the ability to obtain an IP address from DHCP.
Checking NTP server (Option B):Time synchronization is unrelated to DHCP issues.
Authorizing the DHCP server (Option D):This is essential for DHCP operation, but since this is an existing DHCP cluster, the helper address is more likely the issue.
CompTIA Server+ Reference:This topic is related toSK0-005 Objective 1.2: Manage server network connections.
Which of thefollowinglicensing concepts is based on the number of logical processorsaserverhas?
Answer : A
Per core licensing is based on the number of logical processors a server has. A logical processor is either a physical core or a virtual core created by hyperthreading. Per core licensing requires purchasing a license for each logical processor on the server. Verified Reference: [Per core licensing], [Logical processor]