Quiz 4
A network with 10 bits remaining for the host portion will have how many usable host addresses?
1022
You have been tasked with the creation and design of a network that must support a minimum of 4000 hosts. How many bits do you need for the host portion?
12
Given a host IP address of 172.16.1.154 and a subnet mask of 255.255.254.0, what is the network ID for this host?
172.16.0.0
By default, when using classful addressing, how many bits exist in the host portion of a Class A address?
24
If you wish to maintain a "4 nines" availability rating, what is the maximum amount of down time you can have per day?
8 seconds
A highly available server is available what percentage of the time?
99.999%
A hot site consists of computers, devices, and connectivity necessary to rebuild a network exist, but without appropriate configuration.
False
All that is needed to provide communication between two VLANs is a DHCP relay agent.
False
An unmanaged switch can still support the creation of VLANs, provided there is an interface for configuration.
False
Only Class B and Class C networks can be subnetted.
False
Which of the following statements describes a RAID 0 configuration?
In a RAID 0, data is striped across multiple disks to improve performance.
What Storage Area Network (SAN) protocol runs on top of TCP, and can be used on an existing twisted-pair Ethernet network, while maintaining low cost?
Internet SCSI (iSCSI)
A differential backup covers what data on a system?
It includes data that has changed since the last full backup.
A network TAP serves what purpose on a network?
It provides a mirrored port for monitoring traffic between other ports.
In planning for disaster recovery, what is the ultimate goal?
The continuation of business.
In an IPv6 address, what do the first four blocks or 64 bits of the address represent?
The site prefix or global routing prefix.
IPv6 addressing does not utilize classful addressing, therefore every IPv6 address is classless.
True
Most UNIX and Linux desktop operating systems provide a GUI application for easily viewing and filtering the information in system logs.
True
Network segmentation at Layer 2 of the OSI model is accomplished using VLANs.
True
Wireshark or any other monitoring software running on a single computer connected to a switch doesn't see all the traffic on a network, but only the traffic the switch sends to it, which includes broadcast traffic and traffic specifically addressed to the computer.
True
The grouping of multiple servers so that they appear as a single device to the rest of the network is known as which term?
clustering
Network segmentation decreases both performance and security on a network.
false
What term is used to describe the average amount of time that will pass for a device before a failure is expected to occur?
mean time between failures (MTBF)
Which type of uninterruptible power supply uses AC power to continuously charge its battery, while also providing power to devices through the battery?
online UPS
Which of the following terms is commonly used to describe a VLAN configuration in which one router connects to a switch that supports multiple VLANs?
router-on-a-stick
An interface that manages traffic from multiple VLANs is known by what term?
trunk or tag port
