Network+ Review Quiz Chapter 4

In the event of a duplicate MAC address shared by two hosts on a switched network, what statement is accurate? -The hosts will generate new MAC addresses until the conflict is resolved. -The network switch will eventually crash due to being unable to properly forward traffic. -The hosts will still send and receive traffic, but traffic may not always reach the correct destination. -The hosts that share the same MAC addresses will be completely unable to communicate with any other devices.

The hosts will still send and receive traffic, but traffic may not always reach the correct destination.

In general, a Layer 3 or Layer 4 switch is still optimized for fast Layer 2 data handling. T/F?

True

The cost of upgrading infrastructure has been a major factor in the slow adoption of IPv6. T/F?

True

What command will list only current connections, including IP addresses and port numbers? -portstat -show ip stats -netstat -s -netstat -n

netstat -n

Which command will produce statistics about each message transmitted by a host, separated according to protocol type? -ipstat -a -netstat -an -ipconfig -s -netstat -s

netstat -s

Which command will produce statistics about each message transmitted by a host, separated according to protocol type? -netstat -an -ipstat -a -ipconfig -s -netstat -s

netstat -s

You are connected to your network's Cisco router, and need to verify the route table. What command should you enter? -show route-table -show ip route -route print -route -a

show ip route

In a TCP segment, what field indicates how many bytes the sender can issue to a receiver before acknowledgment is received? -sliding-window -URG flag -PSH flag -urgent pointer

sliding-window

In a TCP segment, what field indicates how many bytes the sender can issue to a receiver before acknowledgment is received? -sliding-window -urgent pointer -PSH flag -URG flag

sliding-window

In IPv6, what field is used to indicate what sequence of packets from one source to one or multiple destinations a packet belongs to? -group ID -traffic exchange -traffic class -flow label

flow label

What IPv6 field is similar to the TTL field in IPv4 packets? -distance vector -flow label -next header -hop limit

hop limit

By default, what is the MTU size on a typical Ethernet network? -1492 bytes -1500 bytes -1518 bytes -1522 bytes

1500 bytes

What statement regarding the differences between the Windows tracert utility and the Linux/UNIX/macOS traceroute utility is accurate? -The Windows tracert utility does not place limits on the TTL of repeated trial messages. -Only tracert can send UDP messages for tracing a path. -By default, the tracert utility uses ICMP echo requests, while traceroute uses UDP datagrams or TCP SYN messages. -The tracert utility expects an ICMP port unreachable error message as the final reply to a trace.

By default, the tracert utility uses ICMP echo requests, while traceroute uses UDP datagrams or TCP SYN messages.

What statement regarding the differences between the Windows tracert utility and the Linux/UNIX/macOS traceroute utility is accurate? -The Windows tracert utility does not place limits on the TTL of repeated trial messages. -The tracert utility expects an ICMP port unreachable error message as the final reply to a trace. -Only tracert can send UDP messages for tracing a path. -By default, the tracert utility uses ICMP echo requests, while traceroute uses UDP datagrams or TCP SYN messages.

By default, the tracert utility uses ICMP echo requests, while traceroute uses UDP datagrams or TCP SYN messages.

What field in an IPv4 packet informs routers the level of precedence they should apply when processing an incoming packet? -Padding -Differentiated Services (DiffServ) -Internet header length (IHL) -Time to Live (TTL)

Differentiated Services (DiffServ)

What occurs when a collision happens on a network? -The collision will create an error in the network switch, but otherwise, no issues will occur as a result. -Each node on the network waits a random amount of time and then resends the transmission. -Each node on the network stops transmitting, until manually told to reconnect and transmit. -The collision goes undetected, and data transmission continues.

Each node on the network waits a random amount of time and then resends the transmission.

TCP uses a four-step process called a four-way handshake to establish a TCP connection. T/F?

False

UDP provides error checking, but not sequencing. T/F?

False

You have been tasked with maintaining a network that is jumbo frame enabled. What does this mean? -Fragmented frames will be consolidated into whole frames before being sent. -The MTU for the network can be as high as 9198 bytes. -The MTU for the network is set at 65,535 bytes. -The network is not based on the Ethernet standard.

The MTU for the network can be as high as 9198 bytes.