Quizziz #12

Which of the following would an administrator use to migrate virtual machines from on premises to the cloud?

• IaaS

• SaaS

• DBaaS

• DRaaS

A user, who is attempting to give a presentation via a projector in a conference room, reports the projector has video but no audio. Which of the following will MOST likely resolve the issue?

• Changing the input on the projector to VGA

• Changing the output on the PC to DVI

• Modifying the projector's refresh rate

• Utilizing an HDMI connection

Which of the following standards supports MIMO technology?

• 802.11a

• 802.11b

• 802.11g

• 802.11n

Answer explanation

In radio, multiple-input and multiple-output, or MIMO, is a method for multiplying the capacity of a radio link using multiple transmission and receiving antennas to exploit multipath propagation. MIMO has become an essential element of wireless communication standards including IEEE 802.11n (Wi-Fi 4).

Which of the following technologies can allow multiple networks to traverse a switch?

• VLAN

• VRRP

• VPN

• DHCP

A company just bought a printer capable of automatically printing on both sides of the paper After installation, however, the technician can only print on both sides of the paper manually. Which of the following should the technician do to fix the issue?

• Install the most recent firmware upgrade available for the printer

• Contact the vendor for a hardware replacement

• Reinstall the printer software and drivers, and then restart the printer

• Read the installation manual and configure duplex settings

An online retailer would like to add capacity to support increased sales. Additional servers have been installed. Which of the following should be used to ensure each new server is being properly utilized?

• Virtualization

• Clustering

• Load balancer

• Round-robin DNS

Answer explanation

In computing, load balancing is the process of distributing a set of tasks over a set of resources (computing units), with the aim of making their overall processing more efficient. Load balancing can optimize the response time and avoid unevenly overloading some compute nodes while other compute nodes are left idle.

Which of the following utilizes TCP ports 20/21 and transfers data in cleartext?

• SNMP

• SSH

• FTP

• Telnet

An organization maintains various record types, including health and criminal justice records. Which of the following cloud environments is the organization MOST likely to use to limit the attack surface?

• Public

• Hybrid

• Community

• Private

Answer explanation

Private cloud is cloud infrastructure operated solely for a single organization, whether managed internally or by a third party, and hosted either internally or externally. Undertaking a private cloud project requires significant engagement to virtualize the business environment, and requires the organization to reevaluate decisions about existing resources. It can improve business, but every step in the project raises security issues that must be addressed to prevent serious vulnerabilities.

Which of the following components enables the input on a mobile device's touch screen?

• OLED

• Digitizer

• Inverter

• CMOS sensor

Which of the following should the data center hardware technician implement to ensure maximum uptime for customers' virtual machines?

• Line conditioner

• AC voltage regulator

• Uninterruptible power supply

• Cloud storage backup