COS2626 -LATEST UPDATE-COMPLETE QUESTIONS AND
ANSWERS |TOP RATED 100% CORRECT
Which TWO encryption protocols might be used to provide secure transmissions for browser and
web server communications? - (ANSWERS)SSL (Secure Sockets Layer) and TLS (Transport
Layer Security)
Which client/server application allows an administrator to control a remote computer, but does
not encrypt or secure the communication between the client and the server? -
(ANSWERS)Telnet
Which THREE types of services are considered part of unified communications or convergence?
- (ANSWERS)Conversational voice, streaming live audio and video, streaming stored audio and
voice
A network consists of seven computers and a network printer all connected directly to one
switch. Which network topology does this network use? - (ANSWERS)star topology
A network consists of seven computers and a network printer all connected directly to one
switch, suppose a new switch is connected to the first switch by way of a network cable and
three computers are connected to the new switch. Which network topology is now used? -
(ANSWERS)star-bus topology
Which one of the following typically outlines the proper handling procedures for substances such
as chemical solvents and how to dispose of them? - (ANSWERS)(MSDS) Material Safety Data
Sheet
The last part of an FQDN (Fully Qualified Domain Name) is called the ________________ -
(ANSWERS)TLD (Top-Level Domain)
You have introduced a new secondary DNS (Domain Name Server) server online and notice
that your monitoring software reports a significant increase in network traffic. Which TWO hosts
on your network are likely to be causing the increased traffic and why? - (ANSWERS)The
secondary and primary DNS servers, because the secondary server is requesting
zone transfers from the primary server
Several types of records, called resource records are kept in a DNS database. A
________________ record is
used for reverse lookups, to provide a host name when you know its IP address -
(ANSWERS)PTR (Pointer)
What decimal number corresponds to the binary number 11111111? - (ANSWERS)255
Which statement (s) regarding NAT (Network Address Translation) is (are) CORRECT?
i. NAT is a technique designed to conserve public IP addresses needed by a network.
, ii. One of the advantages of NAT is security; the gateway hides the entire private network
behind this one address.
iii. Two variations of NAT are SNAT (Static Network Address Translation) and ENAT
(Extensive Network Address Translation). - (ANSWERS)i and ii
Which TWO ipconfig commands are used to show the DNS resolver cache information and clear
the name resolver cache?
i. ipconfig /releasedns
ii. ipconfig /alldns
iii. ipconfig /displaydns
iv. ipconfig /flushdns - (ANSWERS)iii and iv
At what layer of the OSI (Open Systems Interconnection) model would a TCP or UDP header be
added to a payload? - (ANSWERS)Layer 4
UDP's lack of sophistication makes it ________________ efficient than TCP. -
(ANSWERS)more
Study the following list of CHARACTERISTICS:
> Layer 2 protocol that uses IP in Layer 3
> Used with IPv4
> Obtains MAC (physical) address of host or node
> Creates database that maps IP address to MAC addresses
The above list depicts the characteristics of the ________________ - (ANSWERS)ARP
(Address Resolution Protocol)
Which routing protocol enables routers to communicate beyond neighbouring routers, allowing
each router to create a map of an entire network? - (ANSWERS)Link-state routing protocols
Routers rate the reliability and priority of a routing protocol's data based on certain criteria.
Which routing protocol criterion is defined as the time it takes to recognize a best path change
in the event of a change network outage? - (ANSWERS)convergence time
Which one of the following routing protocols are used by border routers and exterior routers to
distribute data outside of an autonomous system? - (ANSWERS)BGP (Border Gateway
Protocol)
By default, the pathping command sends HOW MANY pings per hop? - (ANSWERS)100
Which standard is also known as structured cabling? - (ANSWERS)TIA/EIA-568 Commercial
Building Wiring Standard
ANSWERS |TOP RATED 100% CORRECT
Which TWO encryption protocols might be used to provide secure transmissions for browser and
web server communications? - (ANSWERS)SSL (Secure Sockets Layer) and TLS (Transport
Layer Security)
Which client/server application allows an administrator to control a remote computer, but does
not encrypt or secure the communication between the client and the server? -
(ANSWERS)Telnet
Which THREE types of services are considered part of unified communications or convergence?
- (ANSWERS)Conversational voice, streaming live audio and video, streaming stored audio and
voice
A network consists of seven computers and a network printer all connected directly to one
switch. Which network topology does this network use? - (ANSWERS)star topology
A network consists of seven computers and a network printer all connected directly to one
switch, suppose a new switch is connected to the first switch by way of a network cable and
three computers are connected to the new switch. Which network topology is now used? -
(ANSWERS)star-bus topology
Which one of the following typically outlines the proper handling procedures for substances such
as chemical solvents and how to dispose of them? - (ANSWERS)(MSDS) Material Safety Data
Sheet
The last part of an FQDN (Fully Qualified Domain Name) is called the ________________ -
(ANSWERS)TLD (Top-Level Domain)
You have introduced a new secondary DNS (Domain Name Server) server online and notice
that your monitoring software reports a significant increase in network traffic. Which TWO hosts
on your network are likely to be causing the increased traffic and why? - (ANSWERS)The
secondary and primary DNS servers, because the secondary server is requesting
zone transfers from the primary server
Several types of records, called resource records are kept in a DNS database. A
________________ record is
used for reverse lookups, to provide a host name when you know its IP address -
(ANSWERS)PTR (Pointer)
What decimal number corresponds to the binary number 11111111? - (ANSWERS)255
Which statement (s) regarding NAT (Network Address Translation) is (are) CORRECT?
i. NAT is a technique designed to conserve public IP addresses needed by a network.
, ii. One of the advantages of NAT is security; the gateway hides the entire private network
behind this one address.
iii. Two variations of NAT are SNAT (Static Network Address Translation) and ENAT
(Extensive Network Address Translation). - (ANSWERS)i and ii
Which TWO ipconfig commands are used to show the DNS resolver cache information and clear
the name resolver cache?
i. ipconfig /releasedns
ii. ipconfig /alldns
iii. ipconfig /displaydns
iv. ipconfig /flushdns - (ANSWERS)iii and iv
At what layer of the OSI (Open Systems Interconnection) model would a TCP or UDP header be
added to a payload? - (ANSWERS)Layer 4
UDP's lack of sophistication makes it ________________ efficient than TCP. -
(ANSWERS)more
Study the following list of CHARACTERISTICS:
> Layer 2 protocol that uses IP in Layer 3
> Used with IPv4
> Obtains MAC (physical) address of host or node
> Creates database that maps IP address to MAC addresses
The above list depicts the characteristics of the ________________ - (ANSWERS)ARP
(Address Resolution Protocol)
Which routing protocol enables routers to communicate beyond neighbouring routers, allowing
each router to create a map of an entire network? - (ANSWERS)Link-state routing protocols
Routers rate the reliability and priority of a routing protocol's data based on certain criteria.
Which routing protocol criterion is defined as the time it takes to recognize a best path change
in the event of a change network outage? - (ANSWERS)convergence time
Which one of the following routing protocols are used by border routers and exterior routers to
distribute data outside of an autonomous system? - (ANSWERS)BGP (Border Gateway
Protocol)
By default, the pathping command sends HOW MANY pings per hop? - (ANSWERS)100
Which standard is also known as structured cabling? - (ANSWERS)TIA/EIA-568 Commercial
Building Wiring Standard
