A Learning Portal from Recruitment India
A Learning Portal from Recruitment India
Which of the given statement does not hold true for the given approaches?
Randomized studies are not used to identify causation
Complication approached exist for inferring causation
Causal relationships may not apply to every individual
All of these
Answer with explanation
Answer: Option BExplanation
Complication approached exist for inferring causation
Workspace
What is the maximum distance with the maximum data rate for 802.11a?
About 65-75 feet
About 90-100 feet
About 150 feet
Over 200 feet
Answer with explanation
Answer: Option AExplanation
The IEEE 802.11a standard provides a maximum data rate of up to 54Mbps, but you need to be close to the access point, somewhere around 65 to 75 feet.
Workspace
Which of the following is true regarding access lists applied to an interface?
You can place as many access lists as you want on any interface until you run out of memory.
You can apply only one access list on any interface.
One access list may be configured, per direction, for each layer 3 protocol configured on an interface.
You can apply two access lists to any interface
Answer with explanation
Answer: Option CExplanation
One access list may be configured, per direction, for each layer 3 protocol configured on an interface.
Workspace
In which of the following technologies is the term HFC used?
DSL
PPPoE
Frame Relay
Dedicated T1
Answer with explanation
Answer: Option DExplanation
In a modern network, hybrid fibre-coaxial (HFC) is a telecommunications industry term for a network that incorporates both optical fiber and coaxial cable to create a broadband network.
Workspace
Which one of the following allows a user at one site to establish a connection to another site and then pass keystrokes from localhost to a remote host?
HTTP
FTP
telnet
none of the mentioned
Answer with explanation
Answer: Option CExplanation
telnet
Workspace
The portion of physical layer that interfaces with the media access control sublayer is called:
physical address sublayer
physical signaling sublayer
physical data sublayer
none of the mentioned
Answer with explanation
Answer: Option BExplanation
physical signalling sublayer
Workspace
What does a switch do when a frame is received on an interface and the destination hardware address is unknown or not in the filter table?
Forwards the switch to the first available link
Drops the frame
Floods the network with the frame looking for the device
Sends back a message to the originating station asking for a name resolution
Answer with explanation
Answer: Option CExplanation
Switches flood all frames that have an unknown destination address. If a device answers the frame, the switch will update the MAC address table to reflect the location of the device.
Workspace
Which command displays RIP routing updates?
show ip route
debug ip rip
show protocols
debug ip route
Answer with explanation
Answer: Option BExplanation
The debug ip rip command is used to show the Internet Protocol (IP) Routing Information Protocol (RIP) updates being sent and received on the router.
Workspace
Which of the following is private IP address?
12.0.0.1
168.172.19.39
172.15.14.36
192.168.24.43
Answer with explanation
Answer: Option DExplanation
Class A private address range is 10.0.0.0 through 10.255.255.255. Class B private address range is 172.16.0.0 through 172.31.255.255, and Class C private address range is 192.168.0.0 through 192.168.255.255.
Workspace
What flavor of Network Address Translation can be used to have one IP address allow many users to connect to the global Internet?
NAT
Static
Dynamic
PAT
Answer with explanation
Answer: Option DExplanation
Port Address Translation (PAT) allows a one-to-many approach to network address translation.
Workspace
ETSI stands for
European Telecommunication Standards Institute
European Telephone Standards Institute
European Telecommunication Systems Institute
European Telecom Standards Institute
Answer with explanation
Answer: Option AExplanation
European Telecommunication Standards Institute
Workspace
A layer-4 firewall ( a device that can look at all protocol headers up to the transport layer) CANNOT
block HTTP traffic during 9:00PM and 5:00AM
block all ICMP traffic
stop incoming traffic from a specific IP address but allow outgoing traffic to same IP
block TCP traffic from a specific user on a specific IP address on multi-user system during 9:00PM and 5:00AM
Answer with explanation
Answer: Option AExplanation
HTTP is an application layer protocol. Since the firewall is at layer 4, it cannot block HTTP data.
Workspace
