Objective 3.1/Day 13 -

What are SNMP databases called?

• HOSTS

• MIBs

• WINS

• Agents

Answer explanation

SNMP uses databases of information called MIBs to define what parameters are accessible, which of the parameters are read-only, and which can be set.

Objective 3.2/Day 13 -

Your organization is doing upfront planning for proper AP placement to ensure coverage and address security concerns. Which of the following would help you most with this endeavor? (Choose two.)

• Site survey

• Yagi

• MU-MIMO

• Heat map

Answer explanation

Professional site surveys for wireless network installations and proper access point (AP) placement are used to ensure coverage area and security concerns. Site surveys use Wi-Fi and other wireless analyzers to understand and map out the wireless infrastructure. One output is a wireless heat map. A Yagi antenna is an example of a directional antenna, and multiuser multiple input, multiple output (MU-MIMO) antennas take advantage of multipath signal reflections.

Objective 3.2/Day 13 -

The head of HR is complaining that the network cabling in her office is outdated and should be changed. What should she do to have the cabling evaluated and possibly changed?

• Tell her supervisor that IT needs to get on the ball.

• Tell IT she can to their job better than they do.

• Purchase new cabling at the local electronics store.

• Complete a change request.

Answer explanation

An official change request should be logged and tracked to verify what is to be done and what has been done. Within the realm of the change request should be the configuration procedures to be used, the rollback process that is in place, the potential impact identified, and a list of those that need to be notified.

Objective 3.3/Day 13 -

Which of the following recovery sites might require the delivery of computer equipment and an update of all network data?

• Cold site

• Warm site

• Hot site

• None of the above

Answer explanation

A cold site provides an alternative location but typically not much more. A cold site often requires the delivery of computer equipment and other services. A hot site has all network equipment ready to go if a massive failure occurs. A warm site has most equipment ready but still needs days or weeks to have the network up and running.

Objective 3.2/Day 13 -

What stipulates the performance you can expect or demand by outlining the expectations a vendor has agreed to meet?

• SLA

• MOU

• NDA

• BCP

Answer explanation

A service-level agreement (SLA) is an agreement between you or your company and a service provider, typically a technical support provider. SLAs are also usually part of network availability and other agreements. They stipulate the performance you can expect or demand by outlining the expectations a vendor has agreed to meet.

Objective 3.3/Day 13 -

Which type of recovery site mirrors the organization’s production network and can assume network operations on a moment’s notice?

• Warm site

• Hot site

• Cold site

• Mirrored site

Answer explanation

A hot site mirrors the organization’s production network and can assume network operations at a moment’s notice. Warm site is incorrect because warm sites have the equipment needed to bring the network to an operational state but require configuration and potential database updates. Cold site is incorrect because cold sites have the space available with basic services but typically require equipment delivery. Mirrored site is incorrect because a mirrored site is not a valid option.

Objective 3.3/Day 13 -

Which of the following is used to automatically assign routers to hosts and creates virtual routers that act as a group?

• VRRP

• RAID 5

• RAID 10

• NIC teaming

Answer explanation

The Virtual Router Redundancy Protocol (VRRP) is used to automatically assign routers to hosts. It creates virtual routers (abstract representations of multiple routers) that act as a group. Popular fault-tolerant RAID implementations include RAID 1, RAID 5, and RAID 10. NIC teaming is the process of combining multiple network cards for performance and redundancy (fault tolerance) reasons.

You suspect that an intruder has gained access to your network. You want to see how many failed logon attempts were made in one day to help determine how the person got in. Which of the following might you do?

• Review the history logs.

• Review the security logs.

• Review the logon logs.

• Review the performance logs.

Answer explanation

The security logs can be configured to show failed or successful logon attempts as well as object access attempts. In this case, you can review the security logs and failed logon attempts to get the desired information. The failed logons will show the date and time when the failed attempts occurred.

Up to 52.56 minutes of down time per year: ​ (a)  

Up to 87.6 hours of down time per year: ​ (b)  

Up to 5.26 minutes of down time per year: ​ (c)  

Up to 8.77 hours of downtime per year: ​ (d)  

• 99%
• 99.999%
• 99.9%
• 99.99%

Answer explanation

Objective 3.3/Day 13 -

"Five Nines" (99.999%): This level of availability equates to downtime of only 5.26 minutes per year. It is typically associated with mission-critical systems and services.

"Four Nines" (99.99%): This level of availability allows for up to 52.56 minutes of downtime per year.

"Three Nines" (99.9%): This level of availability permits up to 8.77 hours of downtime per year.

"Two Nines" (99%): This level of availability allows for up to 87.6 hours (around 3.65 days) of downtime per year.

Objective 3.1/Day 13 -

What network performance metric measures the time delay between sending a data packet and receiving its acknowledgment, often influenced by factors like network congestion and distance?

• Temperature

• Bandwidth

• Latency

• Jitter

Answer explanation

Latency refers to the time it takes for a data packet to travel from the source to the destination and back. It is a crucial metric for measuring network responsiveness and can be affected by various factors such as the distance between devices, network congestion, and processing delays in intermediate devices.