MSIS 4123 FINAL | QUIZ SMART | SCORE HIGH |
GUARANTEED ACCURACY!
True or False? The point of DNS redundancy is to provide other servers that can be
contacted in the event the main server goes down. - Answer: True
Bob has a desktop computer behind a home gateway router that implements a simple
version of network address translation (NAT). Bob wishes to connect to a server on the
Internet. If ...
- the home gateway router's external (i.e., Internet side) IP address assigned by Bob's
ISP is: 82.34.31.123,
- the home gateway router's internal (i.e., home network side) IP address is :
192.168.1.1,
- the IP address of Bob's desktop computer is: 192.168.1.25,
- the IP address of the Internet server that Bob wishes to connect is: 56.28.191.44
what is the "source IP address" on the packet that leaves the home gateway router on
its way to the server on the Internet? - Answer: 82.34.31.123
Here is a list of features appearing in a low-cost commercial gateway. Which feature is
most important in order to use private IP addresses? - Answer: Network address
translation (NAT)
An attack that forges the sender's IP address is called a(n): - Answer: IP address
spoofing attack.
True or False? Crypto techniques originally focused on confidentiality. - Answer: True
An attack in which one or more hosts conspire to inundate a victim with TCP session
establishment requests is called a: - Answer: not (smurf attack.)
not (DDoS)
SYN flooding attack.?
1
APPHIA - Crafted with Care and Precision for Academic Excellence.
,True or False? The purpose of a gateway firewall is to block potentially hostile traffic
from reaching the internal LAN. - Answer: True
True or False? Network address translation (NAT) prevents hosts on a LAN from
sharing the global IP address assigned by the ISP. - Answer: False
Spams relies heavily on __________. - Answer: the absence of email authentication
True or False? Hosts behind a network address translation (NAT) gateway are typically
assigned private IP addresses. - Answer: True
Which TCP header fields help ensure reliable transmission of data by keeping track of
the number of bytes sent and received? Select all that apply. - Answer:
Acknowledgment number
Sequence number
To launch a distributed denial of service (DDOS) attack, an attacker often uses: -
Answer: a botnet.
How does DNS cache poisoning work? - Answer: The attacker transmits bogus DNS
responses to the victim, or the victim's DNS server, containing the bogus information.
True or False? We clearly need to use encryption if we wish to protect against sniffing. -
Answer: True
Which of the following play an essential part in a smurf attack? Select all that apply. -
Answer: Packet broadcasting
A spoofed source IP address
2
APPHIA - Crafted with Care and Precision for Academic Excellence.
, A rootkit is: - Answer: software that hides on a computer and provides a back door for
an attacker
Secure Sockets Layer (SSL) has been replaced by: - Answer: Transport Layer Security
(TLS)
Static packet filtering typically looks at the network and transport layer headers and
filters on all of the following values, except: - Answer: email address
TCP and the User Datagram Protocol (UDP) provide connections between
___________________________________. - Answer: two processes on
communicating hosts on the Internet
The ____________________ detects an intrusion and automatically implements
security measures to block the intrusion attempt. - Answer: Intrusion Detection System
True or False? The ARP cache contains every MAC address and corresponding IP
address the host need to use. - Answer: True
True or False? The Internet Corporation for Assigned Names and Numbers (ICAAN)
manages the distribution of domain names and IP addresses. - Answer: True
On the internet, the entity that looks up a domain name and retrieves information about
it is the: - Answer: Domain Name System (DNS).
True or False? A network attack in which someone forges network traffic would be
considered an active attack. - Answer: True
Using content control to control Internet traffic, a gateway focuses on a packet's: -
Answer: application data.
3
APPHIA - Crafted with Care and Precision for Academic Excellence.
GUARANTEED ACCURACY!
True or False? The point of DNS redundancy is to provide other servers that can be
contacted in the event the main server goes down. - Answer: True
Bob has a desktop computer behind a home gateway router that implements a simple
version of network address translation (NAT). Bob wishes to connect to a server on the
Internet. If ...
- the home gateway router's external (i.e., Internet side) IP address assigned by Bob's
ISP is: 82.34.31.123,
- the home gateway router's internal (i.e., home network side) IP address is :
192.168.1.1,
- the IP address of Bob's desktop computer is: 192.168.1.25,
- the IP address of the Internet server that Bob wishes to connect is: 56.28.191.44
what is the "source IP address" on the packet that leaves the home gateway router on
its way to the server on the Internet? - Answer: 82.34.31.123
Here is a list of features appearing in a low-cost commercial gateway. Which feature is
most important in order to use private IP addresses? - Answer: Network address
translation (NAT)
An attack that forges the sender's IP address is called a(n): - Answer: IP address
spoofing attack.
True or False? Crypto techniques originally focused on confidentiality. - Answer: True
An attack in which one or more hosts conspire to inundate a victim with TCP session
establishment requests is called a: - Answer: not (smurf attack.)
not (DDoS)
SYN flooding attack.?
1
APPHIA - Crafted with Care and Precision for Academic Excellence.
,True or False? The purpose of a gateway firewall is to block potentially hostile traffic
from reaching the internal LAN. - Answer: True
True or False? Network address translation (NAT) prevents hosts on a LAN from
sharing the global IP address assigned by the ISP. - Answer: False
Spams relies heavily on __________. - Answer: the absence of email authentication
True or False? Hosts behind a network address translation (NAT) gateway are typically
assigned private IP addresses. - Answer: True
Which TCP header fields help ensure reliable transmission of data by keeping track of
the number of bytes sent and received? Select all that apply. - Answer:
Acknowledgment number
Sequence number
To launch a distributed denial of service (DDOS) attack, an attacker often uses: -
Answer: a botnet.
How does DNS cache poisoning work? - Answer: The attacker transmits bogus DNS
responses to the victim, or the victim's DNS server, containing the bogus information.
True or False? We clearly need to use encryption if we wish to protect against sniffing. -
Answer: True
Which of the following play an essential part in a smurf attack? Select all that apply. -
Answer: Packet broadcasting
A spoofed source IP address
2
APPHIA - Crafted with Care and Precision for Academic Excellence.
, A rootkit is: - Answer: software that hides on a computer and provides a back door for
an attacker
Secure Sockets Layer (SSL) has been replaced by: - Answer: Transport Layer Security
(TLS)
Static packet filtering typically looks at the network and transport layer headers and
filters on all of the following values, except: - Answer: email address
TCP and the User Datagram Protocol (UDP) provide connections between
___________________________________. - Answer: two processes on
communicating hosts on the Internet
The ____________________ detects an intrusion and automatically implements
security measures to block the intrusion attempt. - Answer: Intrusion Detection System
True or False? The ARP cache contains every MAC address and corresponding IP
address the host need to use. - Answer: True
True or False? The Internet Corporation for Assigned Names and Numbers (ICAAN)
manages the distribution of domain names and IP addresses. - Answer: True
On the internet, the entity that looks up a domain name and retrieves information about
it is the: - Answer: Domain Name System (DNS).
True or False? A network attack in which someone forges network traffic would be
considered an active attack. - Answer: True
Using content control to control Internet traffic, a gateway focuses on a packet's: -
Answer: application data.
3
APPHIA - Crafted with Care and Precision for Academic Excellence.
