CIT 184
Which security tool works by recognizing signs of a possible attack and sending notification to an administrator?
IDPS
Which of the following is the broadcast address for subnet 192.168.10.32 with subnet mask 255.255.255.240
192.168.10.47
Which of the following correctly represents the port used by FTP control traffic and FTP file transfer traffic respectively?
21, 20
If you are subnetting a class B network, what subnet mask will yield 64 subnets?
255.255.252.0
Which of the following is considered a flooded broadcast IP address?
255.255.255.255
Which of the following is the IPv6 loopback address?
::1
Which protocol is responsible for automatic assignment of IP addresses?
DHCP
What is the typical packet sequence for closing a TCP session?
FIN, ACK, FIN ACK, ACK
A packet monkey is an unskilled programmer who spreads viruses and other malicious scripts to exploit computer weaknesses.
False
A rollover cable is wired similarly to an Ethernet cable except that pins 7 and 8 are crossed.
False
All devices interpret attack signatures uniformly.
False
An atomic attack is a barrage of hundreds of packets directed at a host.
False
Current Microsoft OSs include IPv6, but to use it, you must enable it first.
False
Fragmentation of IP packets is normal and doesn't present any networking problems.
False
IPv4 and IPv6 headers are interoperable.
False
Newer Trojans listen at a predetermined port on the target computer so that detection is more difficult.
False
Reviewing log files is a time-consuming task and therefore should only be done when an attack on the network has occurred.
False
The IP address 172.20.1.5 is a private IP address.
False
The Transport layer of the OSI model includes the RIP protocol.
False
To determine best path, routers use metrics such as the value of the first octet of the destination IP address.
False
Which of the following is an element of the TCP header that can indicate that a connection has been established?
Flags
What is the packet called where a Web browser sends a request to the Web server for Web page data?
HTTP GET
What is contained in ARP tables?
IP address, MAC address
Which of the following is an accurate set of characteristics you would find in an attack signature?
IP address, TCP flags, port numbers
What feature does RIPng support that is not supported by RIP?
IPv6
Which of the following is a reason that UDP is faster than TCP?
It doesn't guarantee delivery
The TCP protocol uses a three-way handshake to create a connection.
True
The signature of a normal FTP connection includes a three-way handshake.
True
With discretionary access control, network users can share information with other users, making it more risky than MAC.
True
Which of the following is a command you would find in an antispoofing ACL for network 172.31.0.0/16?
deny ip 172.31.0.0 0.0.255.255 any log
What is a VPN typically used for?
secure remote access
What is the TCP portion of a packet called?
segment
What Cisco router command encrypts all passwords on the router?
service password-encryption
Which field in the IP header is an 8-bit value that identifies the maximum amount of time the packet can remain in the network before it is dropped?
TTL
What type of attack does a remote-access Trojan attempt to perpetrate?
back door
Which of the following makes routing tables more efficient?
route summarization
Which of the following is a valid IPv6 address?
1080::8:800:200C:417A
How large is the IPv6 address space?
128 bits
Which of the following addresses is a Class B IP address?
189.77.101.6
Which feature of a router provides traffic flow and enhances network security?
ACLs
Which of the following types of traffic does NOT travel through routers?
ARP requests
Which protocol that runs on Cisco routers shares information between Cisco devices?
CDP
What feature in ICMPv6 replaces ARP in IPv4?
Neighbor Discovery
In which OSI model layer will you find the OSPF protocol?
Network
Which of the following is an open standard used for authentication on Cisco routers?
RADIUS
Which type of attack causes the operating system to crash because it is unable to handle arbitrary data sent to a port?
RPC attacks
Which TCP flag can be the default response to a probe on a closed port?
RST
Which of the following is the first packet sent in the TCP three-way handshake?
SYN
What is the sequence of packets for a successful three-way handshake?
SYN, SYN ACK, ACK
Which IPv6 header field is known as the priority field?
Traffic Class
What is a program that appears to do something useful but is actually malware?
Trojan
A worm creates files that copy themselves repeatedly and consume disk space.
True
Cisco routers support both numbered and named ACLs, starting with IOS version 11.2.
True
Packet fragmentation is not normal, and can only occur if an attack has been initiated.
True
Physical security protects a system from theft, fire, or environmental disaster.
True
Some methods of attacking a Cisco router do not require knowledge of the IOS version, so software patching is recommended.
True
What tool do you use to secure remote access by users who utilize the Internet?
VPN
Which type of scan has the FIN, PSH, and URG flags set?
XMAS scan
Which of the following is true about standard IP ACLs?
a 0.0.0.0 inverse mask means all bits are significant
Defense in depth can best be described as which of the following?
a layered approach to security
Which of the following is NOT among the items of information that a CVE reference reports?
attack signature
Which security layer verifies the identity of a user, service, or computer?
authentication
Which of the following is NOT a type of entry found in a routing table?
backup routes
Malware that creates networks of infected computers that can be controlled from a central station is referred to as which of the following?
botnet
In which form of authentication does the authenticating device generate a random code and send it to the user who wants to be authenticated?
challenge/response
What can an IDPS check to try to determine whether a packet has been tampered with or damaged in transit?
checksum
Which of the following is NOT information that a packet filter uses to determine whether to block a packet?
checksum
To what type of port on a Cisco router do you connect a rollover cable?
console
What should you do when configuring DNS servers that are connected to the Internet in order to improve security?
disable zone transfer
What uses mathematical calculations to compare routes based on some measurement of distance?
distance-vector routing protocols
Which of the following types of password prevents a user from accessing privileged exec mode on a Cisco router?
enable
What is the term used when an IDPS doesn't recognize that an attack is underway?
false negative
Which of the following is NOT one of the three primary goals of information security?
impartiality
Which of the following is a metric routers can use to determine best path?
link state
Which of the following is a type of script that automates repetitive tasks in an application such as a word processor but can also be programmed to be a virus?
macro
Which of the following is NOT a reason for subnetting a network?
making larger groups of computers
Which type of attack works by an attacker operating between two computers in a network and impersonating one computer to intercept communications?
man-in-the-middle
What should you set up if you want to store router system log files on a server?
syslog
With which access control method do system administrators establish what information users can share?
mandatory access control
Of what category of attack is a DoS attack an example?
multiple-packet attack
What can an attacker use a port scanner to test for on a target computer?
open sockets
What does a sliding window do in a TCP packet?
provides flow control
What is the name of a storage area where viruses are placed by antivirus software so they cannot replicate or do harm to other files?
quarantine
Under which suspicious traffic signature category would a port scan fall?
reconnaissance
Which type of firewall policy calls for a firewall to deny all traffic by default?
restrictive policy
Why might you want your security system to provide non repudiation?
so a user can't deny sending or receiving a communication
Which term is best described as an attack that relies on the gullibility of people?
social engineering
Which of the following is the description of a land attack?
source and destination IP address/port are the same
What remote shell program should you use if security is a consideration?
ssh
In which type of scan does an attacker scan only ports that are commonly used by specific programs?
strobe scan
How are the two parts of an IP address determined?
subnet masks
Which of the following is NOT an advantage of IPv6 versus IPv4?
supports static configuration
Which of the following is NOT a category of suspicious TCP/IP packet?
suspicious CRC value
Under which attack category does a UNIX Sendmail exploitation fall?
suspicious data payload
Which of the following is true about ACLs on Cisco routers?
there is an implicit deny any statement at the end of the ACL
Which of the following is true about static routes?
they are used for stub networks
How does the CVE standard make network security devices and tools more effective?
they can share information about attack signatures
Which of the following is true about extended IP ACLs?
they should be applied to an interface close to the traffic source
Which element of an ICMP header would indicate that the packet is an ICMP echo request message.
type
A hactivist can best be described as which of the following?
use DoS attacks on Web sites with which they disagree