MODULE 5 Flashcards
What type of IPv6 address is FE80::1?
Loopback
Link-local
Multicast
Global unicast
Link-local
What is the function of the Nslookup utility?
to manually force a client to send a DHCP request
to display all cached DNS entries on a host
to view the network settings on a host
to manually query the name servers to resolve a given host name
to manually query the name servers to resolve a given host name
What is one advantage of using the cut-through switching method instead of the store-and-forward switching method?
provides the flexibility to support any of Ethernet speeds
has a lower latency appropriate for high-performance computing applications
makes a fast forwarding decision based on the source MAC address of the frame
has a positive impact on bandwidth by dropping most of the invalid frames
has a lower latency appropriate for high-performance computing applications
A small-sized company has 30 workstations and 2 servers. The company has been assigned a group of IPv4 addresses 209.165.200.224/29 from its ISP. The two servers must be assigned public IP addresses so they are reachable from the outside world. What technology should the company implement in order to allow all workstations to access services over the Internet simultaneously?
DHCP
Static NAT
Dynamic NAT
Port address translation
Port address translation
What will a host on an Ethernet network do if it receives a frame with a unicast destination MAC address that does not match its own MAC address?
It will remove the frame from the media.
It will forward the frame to the next host.
It will strip off the data-link frame to check the destination IP address.
It will discard the frame.
It will discard the frame.
A device has an IPV6 address listed as 2001:0DB8:75a3:0214:0607:1234:aa10:ba01. What is the interface ID of the device?
2001:0DB8:75a3
ba01
0607:1234:aa10:ba01
2001:0DB8
0607:1234:aa10:ba01
Which statement describes the ping and tracert commands?
Tracert shows each hop, while ping shows a destination reply only.
Tracert uses IP addresses; ping does not.
Both ping and tracert can show results in a graphical display.
Ping shows whether the transmission is successful; tracert does not.
Tracert shows each hop, while pine shows a destination reply only.
Which two devices allow hosts on different VLANs to communicate with each other? (Choose 2)
Layer 2 switch
Layer 3 switch
Hub
Repeater
Router
Layer 3 switch
Router
What is the function of the MIB element as part of a network management system?
To store data about a device
To collect data from SNMP agents
To change configurations on SNMP agents
To send and retrieve network management information
To store data about a device
What type of address is 01-00-5E-0A-00-02?
an address that reaches every host in the network
an address that reaches every host inside a local subnet
an address that reaches a specific group of hosts
an address that reaches one specific host
an address that reaches a specific group of hosts
Consider the following routing table entry for R1:
D 10.1.1.0/24 [90/2170112] via 209.165.200.226, 00:00:05, Serial0/0/0
What is the significance of the Serial0/0/0?
It is the interface on the final destination router that is directly connected to the 10.1.1.0/24 network.
It is the R1 interface through which the EIGRP update was learned.
It is the interface on the next-hop router when the destination IP address the 10.1.1.0/24 network.
It is the interface on R1 used to send data that is destined for 10.1.1.0/24.
It is the interface on R1 used to send data that is destined for 10.1.1.0/24.
What command can a technician use on a computer to see if DNS is functioning properly?
ipconfig
net share
nslookup
net use
nslookup
In what two situations would UDP be preferred transport protocol over TCP? (Choose two.)
when applications need to guarantee that a packet arrives intact, and in sequence, and unduplicated
when a faster delivery mechanism is needed
when delivery overhead is not an issue
when applications do not need to guarantee delivery of the data
when destination port numbers are dynamic
when a faster delivery mechanism is needed
what applications do not need to guarantee delivery of the data
Which impact does adding a Layer 2 switch have on a network?
An increase in the number of dropped frames
An increase in the size of the broadcast domain.
An increase in the number of network collisions
An increase in the size of the collision domain.
An increase in the size of the broadcast domain.
Which two statements are true about NTP servers in an enterprise network? (Choose two.)
There can only be one NTP server on an enterprise network.
All NTP servers synchronize directly to a stratum 1 time source.
NTP servers at stratum 1 are directly connected to an authoritative time source.
NTP servers ensure an accurate time stamp on logging and debugging information.
NTP servers control the mean time between failures (MTBF) for key network devices.
NTP servers at stratum 1 are directly connected to an authoritative time source.
NTP servers ensure an accurate time stamp on logging and debugging information.
Ethernet frame fields
Preamble
SFD
Destination Address
Source Address
EtherType
Data
FCS
What is obtained when ANDing the address 192.168.65.3/18 with its subnet mask?
192.168.0.0
192.168.16.0
192.168.32.0
192.168.64.0
192.168.64.0
Which statement describes a stateful firewall?
- It can only filter packets based on limited Layer 3 and 4 information.
- It can filter packets based on information at Layers 3, 4, 5 and 7 of the OSI reference model
- It can expand the number of IP addresses available and can hide network addressing design.
- It can determine if the connection is in the initiation, data transfer, or termination phase.
It can determine if the connection is in the initiation, data transfer, or termination phase.
Which two OSI model layers have the same functionality as two layers of the TCP/IP model? (Choose two.)
physical
data link
network
transport
session
network
transport
What is the common term given to SNMP log messages that are generated by network devices and sent to the SNMP server?
auditing
warnings
acknowledgements
traps
traps
Data is being sent from a source PC to a destination server. What three statements correctly describe the function of TCP or UDP in this situation? (Choose three)
The UDP destination port number identifies the application or service on the server which will handle the data.
TCP is the preferred protocol when a function requires lower network overhead.
UDP segments are encapsulated within IP packets for transport across the network.
The source port field identifies the running application or service that will handle data returning to the PC.
The TCP source port number identifies the sending host on the network.
The TCP process running on the PC randomly selects the destination port when establishing a session with the server.
The UDP destination port number identifies the application or service on the server which will handle the data.
UDP segments are encapsulated within IP packets for transport across the network.
The source port field identifies the running application or service that will handle data returning to the PC.
Which solution improves web response time by deploying multiple web servers and DNS servers?
memcaching
distributed databases
sharding
load balancing
load balancing
Which IPv6 address is most compressed for the full FE80:0:0:0:2AA:FF:FE9A:4CA3 address?
FE8::2AA:FF:FE9A:4CA3
FE80::2AA:FF:FE9A:4CA3
FE80::0:2AA:FF:FE9A:4CA3
FE80:::0:2AA:FF:FE9A:4CA3
FE80::2AA:FF:FE9A:4CA3
Which command can be used on Linux and MAC hosts to get IP addressing information?
ipconfig
ifconfig
networksetup -getinfo
ip address
ifconfig
What IPv4-related DNS record type is used by a DNS server in response to a host requesting for a web server address via the URL?
AAAA record
NS record
A record
MX record
A record
A high school in New York (school A) is using videoconferencing technology to establish student interactions with another high school (school B) in Russia. The videoconferencing is conducted between two end devices through the Internet. The network administrator of school A configures the end device with the IP address 209.165.201.10. The administrator sends a request for the IP address for the end device in school B and the response is 192.168.25.10. Neither school is using a VPN. The administrator knows immediately that this IP will not work. Why?
This is a link-local address.
This is a private IP address.
There is an IP address conflict.
This is a loopback address.
This is a private IP address
