Quiz 5 on Chapter 11

Which of the following statements describes a RAID 0 configuration? A) In a RAID 0, data is striped across multiple disks to improve performance. B) In a RAID 0, data is mirrored on multiple disks to provide fault tolerance. C) In a RAID 0, data is striped across three or more drives, with parity information added to the data. D) In a RAID 0, four or more disks are used to mirror data within each pair of disks, and then striped to multiple pairs of disks.

A) In a RAID 0, data is striped across multiple disks to improve performance.

At what point is a packet considered to be a giant? A) It becomes a giant when it exceeds the medium's maximum packet size. B) It becomes a giant when it exceeds 1500 bytes. C) It becomes a giant only when fragmented pieces are reassembled, and the packet size is too large. D) It becomes a giant once a VLAN tag is added.

A) It becomes a giant when it exceeds the medium's maximum packet size.

A network TAP serves what purpose on a network? A) It provides a mirrored port for monitoring traffic between other ports. B) It provides wireless monitoring capabilities, as well as spectrum analysis. C) It monitors network throughput at a specific point in the network. D) It serves as a miniature firewall that can be placed in front of any connection.

A) It provides a mirrored port for monitoring traffic between other ports.

You are attempting to determine how available your Linux systems are, and need to find the current system uptime. What command should you use? A) uptime B) show runtime C) lastboot D) display stats

A) uptime

How does a line conditioning UPS protect network equipment? A) It protects against electrical surges. B) It shields equipment from lightning damage. C) It reduces fluctuations in incoming voltage. D) It filters line noise from incoming power.

D) It filters line noise from incoming power.

What 3-bit field in a 802.1Q tag is modified to set a frame's Class of Service (CoS)? A) EtherType B) CRC checksum C) Tag Protocol Identifier (TPID) D) Priority Code Point (PCP)

D) Priority Code Point (PCP)

When using DiffServ, what type of forwarding utilizes a minimum departure rate from a given node, which is then assigned to each data stream? A) assured forwarding B) prioritized forwarding C) scaled forwarding D) expedited forwarding

D) expedited forwarding

What term is used to describe the average amount of time that will pass for a device before a failure is expected to occur? A) estimated time to failure (ETTF) B) product cycle lifetime (PCL) C) maximum time available (MTA) D) mean time between failures (MTBF)

D) mean time between failures (MTBF)

Packets that are smaller than a medium's minimum packet size are known by what term below? A) jabbers B) giants C) ghosts D) runts

D) runts

When Comcast was found to be interfering with BitTorrent traffic, what method was being used? A) Comcast was creating access lists that blocked known BitTorrent trackers. B) Comcast was interjecting TCP segments with the RST (reset) field set. C) Comcast used DNS poisoning to prevent clients from talking to other BitTorrent users. D) Comcast used IP spoofing to impersonate other BitTorrent clients, then dropped traffic.

B) Comcast was interjecting TCP segments with the RST (reset) field set.

What makes up the first 6 bits of the 8-bit DiffServ field? A) Priority Code Point (PCP) B) Differentiated Services Code Point (DSCP) C) Class of Service (CoS) D) Forward Error Correction (FEC)

B) Differentiated Services Code Point (DSCP)

What happens when an NMS uses the SNMP walk command? A) The NMS sends a request for data to the agent on a managed device. B) The NMS uses get requests to move through sequential rows in the MIB database. C) The NMS requests a list of all active SNMP traps on the system. D) The NMS walks through a list of given SNMP hosts.

B) The NMS uses get requests to move through sequential rows in the MIB database.

In planning for disaster recovery, what is the ultimate goal? A) The preservation of critical data. B) The continuation of the business. C) The management of damage. D) The protection of infrastructure.

B) The continuation of the business.

When a device handles electrical signals improperly, usually resulting from a bad NIC, it is referred to by what term below? A) ghost B) jabber C) talker D) blabber

B) jabber

Which type of uninterruptible power supply uses AC power to continuously charge its battery, while also providing power to devices through the battery? A) standby UPS B) online UPS C) line conditioning UPS D) surge UPS

B) online UPS

When using SNMP with TLS, what port do agents receive requests on? A) 161 B) 162 C) 10161 D) 10162

C) 10161

The Link Aggregation Control Protocol was initially defined by what IEEE standard? A) IEEE 802.3af B) IEEE 802.1cd C) IEEE 802.3ad D) IEEE 802.3bd

C) IEEE 802.3ad

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? A) Fibre Channel (FC) B) Fibre Channel over Ethernet (FCoE) C) Internet SCSI (iSCSI) D) InfiniBand (IB)

C) Internet SCSI (iSCSI)

A differential backup covers what data on a system? A) It includes all data every time it is performed. B) It includes only data that has changed since the last backup. C) It includes data that has changed since the last full backup. D) It includes data that has changed since the last incremental backup.

C) It includes data that has changed since the last full backup.

A highly available server is available what percentage of the time? A) 90% B) 99% C) 99.99% D) 99.999%

D) 99.999%