Ch 10: Security in Network Design Flashcards
Which of the following is an example of proxy server software?
Squid
What is NOT a variable that an network access control list can filter traffic with?
The operating system used by the source or destination device.
In ACL statements, using the “any” keyword is equivalent to using a wildcard mask of what value?
255.255.255.255
What kind of firewall can block designated types of traffic based on application data contained within packets?
content-filtering firewall
On a Linux system, which command allows you to modify settings used by the built-in packet filtering firewall?
iptables
What is a SIEM (Security Information and Event Management) system utilized for?
It is a system used to evaluate data from security devices and generate alerts.
When using Spanning Tree Protocol, what is the first step in selecting paths through a network?
STP must first select the root bridge, or master bridge.
In order to prevent ports that are serving network hosts from being considered as best paths, what should be enabled to block BPDUs?
BPDU guard
Which protocol designed to replace STP operates at Layer 3 of the OSI model?
Shortest Path Bridging (SPB)
You have been tasked with the configuration of a Juniper switch, and have been told to restrict the number of MAC addresses allowed in the MAC address table. What command should you use?
mac-limit
Enforcing a virtual security perimeter using a client’s geographic location is known by what term?
geofencing
When using Kerberos, what is the purpose of a ticket?
It is a temporary set of credentials that a client uses to prove to other servers that its identity has been validated.
Which legacy authentication protocol requires mutual authentication?
Microsoft Challenge Handshake Authentication Protocol, version 2 (MS-CHAPv2)
By far the most popular AAA service, what open-source service runs in the Application layer and can use UDP or TCP in the Transport layer?
RADIUS
Which adaptation of EAP utilizes EAP-MSCHAPv2 inside of an encrypted TLS tunnel?
Protected EAP (PEAP)
What IEEE standard includes an encryption key generation and management scheme known as TKIP?
802.11i
What descendant of the Spanning Tree Protocol is defined by the IEEE 802.1W standard, and can detect as well as correct for link failures in milliseconds?
Rapid Spanning Tree Protocol (RSTP)
You have been asked by your superior to configure all Cisco network switches to allow only acceptable MAC addresses through switch access ports. How is this accomplished?
Use the switchport port-security command to enable MAC filtering.
What aspect of AAA is responsible for determining what a user can and cannot do with network resources?
authorization
What statement regarding role-based access control is accurate?
RBAC allows a network administrator to base privileges and permissions around a detailed description of a user’s roles or jobs.
Which encryption standard was originally utilized with WPA’s TKIP?
Rivest Cipher 4 (RC4)
The Wired Equivalent Privacy standard had what significant disadvantage?
It used a shared encryption key for all clients, and the key might never change.
In Open System Authentication, how does authentication occur?
The client “authenticates” using only the SSID name. In other words, no real authentication occurs.
The Group Policy utility can be opened by typing what name into a Run box?
gpedit.msc
