Network Defense (NetDef) Course Final Exam Flashcards
(83 cards)
What is a characteristics of a layered defense-in-depth security approach?
When one device fails, another one takes over
One safeguard failure does not affect the effectiveness of other safeguards
Three or more devices are used
Routers are replaced with firewalls
One safeguard failure does not affect the effectiveness of other safeguards.
What device would be used asa third line of defense in a defense-in-depth approach?
internal router
edge router
host
firewall
internal router
Match the Security Onion Tool
high-level cybersecurity analysis console -
packet capture application -
network-based intrusion detection system -
host-based intrusion detection system -
piece them together w/ these answers:
Wireshark
Sguil
Snort
OSSEC
high-level cybersecurity analysis console
(Sguil)
packet capture application
(Wireshark)
network-based intrusion detection system
(Snort)
host-based intrusion detection system
(OSSEC)
Which wireless standard made AES and CCM mandatory?
WEP
WEP2
WPA
WPA2
WPA2
In a comparison of biometric systems, what is the crossover error rate?
rate of acceptability and rate of false negatives
rate of rejection and rate of false negatives
rate of false negatives and rate of false positives
rate of false positives and rate of acceptability
rate of false negatives and rate of false positives
What are two recommended steps to protect and secure a wireless network? (Choose two.)
Use WPA2-AES encryption
Use the default SSID
Update firmware
Locatel the wireless router where it is accessible to users.
Enable remote management
Use WPA2-AES encryption
Update firmware
What is a feature of virtual LANs (VLANs)?
A single collision domain is enabled on a switch that is shared between VLANs.
Communication between different VLANs on the one switch is enabled by default.
Switch port utilization is decreased because each port is only associated with one broadcast domain.
Logical segmentation is provided by creating multiple broadcast domains on a single switch.
Logical segmentation is provided by creating multiple broadcast domains on a single switch.
What is an example of privilege escalation attack?
A DDoS attack is launched against a goverment server and causes the server to crash.
A port scanning attack finds that the FTP service is running on a server that allows anonymous access.
A threat actor sends an email to an IT manager to request the root access.
A threat actor performs an access attack and gain the administrator password.
A threat actor performs an access attack and gain the administrator password.
What is the principle behind the nondiscretionary access control model?
It applies the strictest access control possible
It allows access based on attributes of the object be to accessed.
It allows access decisions to be based on roles and responsibilities of a user within the organization.
It allows users to control access to their data as owners of that date.
it allows access decisions to be based on roles and repsonsibilities of a user within the organization.
Which two features are included by both TACACS+ and RADIUS protocols? (Choose two.)
utilization of transport layer protocols
separate authentication and authorization processes
password encryption
802.1X support
SIP support
utilization of transport layer protocols
password encryption
Refer to the exhibit. A router has an existing ACL that permits all traffic from the 172.16.0.0 network. The administrator attempts to add a new ACE to the ACL that denies packets from host 172.16.0.1 and receives the error message that is shown in the exhibit. What action can the administrator take to block packets from host 172.16.0.1 while still permitting all other traffic from the 172.16.0.0 network?
Create a second access list denying the host and apply it to the same interface.
Manually add the new deny ACE with a sequence number of 15.
Manually add the new deny ACE with a sequence number of 5.
Add a deny any any ACE to access-list 1
Manually add the new deny ACE with a sequence number of 5.
Which command is used to activate an IPv6 ACL named ENG_ACL on an interface so that the router filters traffic prior to accessing the routing table?
ipv6 traffic-filter ENG_ACL in
ipv6 traffic-filter ENG_ACL out
ipv6 access-class ENG_ACL out
ipv6 access-class ENG_ACL in
ipv6 traffic-filter ENG_ACL in
In which configuration would an outbound ACL placement be preferred over an inbound ACL placement?
when the ACL is applied to an outbound interface to filter packets coming from multiple inbound interfaces before the packets exit the interface
when an outbound ACL is closer to the source of the traffic flow
when an interface is filtered by an outbound ACL and the network attached to the interface is the source network being filtered within the ACL
when a router has more than one ACL
when the ACL is applied to an outbound interface to filter packets coming from multiple inbound interfaces before the packets exist the interface.
What are two differences between stateful and stateless firewalls? (Choose two.)
A stateless firewall is abe to filter sessions that use dynamic port negotitations while a stateful firewal cannot.
A stateless firewall will examine each packet individually while a stateful firewall observes the state of a connection.
stateless firewall provides more stringent control over security than a stateful firewall.
A stateless firewall will provide more logging information than a stateful firewall.
A stateful firewall will prevent spoofing by determining whether packets belong to an existing connection while a stateless firewall follows pre-configured rule sets.
A stateless firewall will examine each packet individually while a stateful firewall observes the state of a connection.
A stateful firewall will prevent spoofing by determining whether packets belong to an existing connection while a stateless firewall follows pre-configured rule sets.
Which statement describes a typical security policy for a DMZ firewall configuration?
Traffic that originates from the inside interface is generally blocked entirely or very selectively permitted to the outside interface.
Traffic that originates from the DMZ interface is selectively permitted to the outside interface.
Return traffic from the inside that is associated with traffic originating from the outside is permitted to traverse from the inside interface to the outside interface.
Traffic that originates from the outside interface is permitted to traverse the firewall to the inside interface with few or no restrictions.
Return traffic from the outside that is associated with traffic originating from the inside is permitted to traverse from the outside interface to the DMZ interface.
Traffic that originates from the DMZ interface is selectively permitted to the outside interface.
Which type of firewall makes use of a proxy server to connect to remote servers on behalf of clients?
stateless firewall
application gateway firewall
stateful firewall
packet filtering firewall
application gateway firewall
What is the result in the self zone if a router is the source or destination of traffic?
Only traffic that is destined for the router is permitted.
Only traffic that originates in the router is permitted.
No traffic is permitted.
All traffic is permitted.
All traffic is permitted
Designing a ZPF requires several steps. Which step involves dictating the number of devices between most-secure and least-secure zones and determining redundant devices?
identify subsets within zones and merge traffic requirements
design the physical infrastructure
establish policies between zones
determine the zones
design the physical infrastructure
Which statement describes Cisco IOS Zone-Based Policy Firewall operation?
The pass action works in only one direction.
Router management interfaces must be manually assigned to the self zone.
Service policies are applied in interface configuration mode.
A router interface can belong to multiple zones.
The pass action works in only one direction.
Which cloud security domain describes related to securing the data itself?
Data Security and Encryption
Application Security
Security as a Service
Infrastructure Security
Data Seecurity and Encryption
Which two advantages in security controls are provided by software-defined networks (SDN) over traditional network security solutions? (Choose two.)
offer more security features than hardware firewalls
easier insertion into the traffic path
apply to assets based on more flexible criteria than hardware firewalls
easier network isolation without constraints of physical hardware
higher performance than hardware firewalls
apply to assets based on more flexible criteria than hardware firewalls
easier network isolation without constraints of physical hardware
higher performance than hardware firewalls
What is the function of SDKs in application development?
to provide a repository of code to reduce time and cost of application development
to maintain data integrity and identify malicious input
to store precompiled SQL statements that execute tasks
to verify software can run under required security settings
to prevent software from being reverse engineered by replacing sensitive data with fictional data
to provide a repository of code to reduce time and cost of application development
A company is using a public cloud provider to host its software development and distribution processes. What two cloud resources is the company solely responsible for in the shared security responsibility model? (Choose two.)
network control
customer endpoints
application
data
identity management
customer endpoints
data
A company implements a security policy that ensures that a file sent from the headquarters office to the branch office can only be opened with a predetermined code. This code is changed every day. Which two algorithms can be used to achieve this task? (Choose two.)
MD5
AES
SHA-1
HMAC
3DES
AES
3DES