Chapter 9: Implementing Secure Network Designs UPDATED ACTUAL Exam Questions and CORRECT ANSWERS
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Course
Implementing Secure Network Designs
Institution
Implementing Secure Network Designs
Chapter 9: Implementing Secure Network
Designs UPDATED ACTUAL Exam
Questions and CORRECT ANSWERS
Consider the types of zones within a network's topology and locate the zone considered semitrusted and requires hosts to authenticate to join.
A.) Private network
B.) Extranet
C.) Internet
D.)...
Chapter 9: Implementing Secure Network
Designs UPDATED ACTUAL Exam
Questions and CORRECT ANSWERS
Consider the types of zones within a network's topology and locate the zone considered semi-
trusted and requires hosts to authenticate to join.
A.) Private network
B.) Extranet
C.) Internet
D.) Anonymous - CORRECT ANSWER✔✔- B
This is a network of semi-trusted hosts, typically representing business partners, suppliers, or
customers. Hosts must authenticate to join - CORRECT ANSWER✔✔- Extranet Zone
This is a network of trusted hosts owned and controlled by the organization. This type of
trusted host network is under administrative control and subject to the security mechanisms
set up to defend the network. - CORRECT ANSWER✔✔- Private Network (Intranet)
This or guest, zones permit anonymous access by untrusted hosts over the Internet. This can
also be a mix of anonymous and authenticated access. - CORRECT ANSWER✔✔- Internet
Typical network security weaknesses include: - CORRECT ANSWER✔✔- -Single points of
failure—a "pinch point" relying on a single hardware server or appliance or network channel.
-Complex dependencies—services that require many different systems to be available. I
-Availability over confidentiality and integrity—often it is tempting to take "shortcuts" to get
a service up and running.
-Lack of documentation and change control—network segments, appliances, and services
might be added without proper change control procedures, leading to a lack of visibility into
how the network is constituted.
-Overdependence on perimeter security—if the network architecture is "flat" (that is, if any
host can contact any other host), penetrating the network edge gives the attacker freedom of
movement.
, These forward frames between nodes in a cabled network. Switches work at layer 2 of the
OSI model and make forwarding decisions based on the hardware or Media Access Control
(MAC) address of attached nodes. - CORRECT ANSWER✔✔- Switches
These can establish network segments that either map directly to the underlying cabling or to
logical segments, created in the switch configuration as virtual LANs (VLANs). - CORRECT
ANSWER✔✔- Switches
These provide a bridge between a cabled network and wireless clients, or stations. APs work
at layer 2 of the OSI model. - CORRECT ANSWER✔✔- Wireless access points
These forward packets around an internetwork, making forwarding decisions based on IP
addresses. They work at layer 3 of the OSI model and can apply logical IP subnet addresses
to segments within a network. - CORRECT ANSWER✔✔- Routers
These apply an access control list (ACL) to filter traffic passing in or out of a network
segment. They can work at layer 3 of the OSI model or higher. - CORRECT ANSWER✔✔-
Firewalls
This distribute traffic between network segments or servers to optimize performance. It can
work at layer 4 of the OSI model or higher. - CORRECT ANSWER✔✔- Load Balancer
This host name records and perform name resolution to allow applications and users to
address hosts and services using fully qualified domain names (FQDNs) rather than IP
addresses. DNS works at layer 7 of the OSI model. - CORRECT ANSWER✔✔- Domain
Name System (DNS) servers
This maps a network interface's hardware (MAC) address to an IP address. Normally a device
that needs to send a packet to an IP address but does not know the receiving device's MAC
address broadcasts an ARP Request packet, and the device with the matching IP responds
with an ARP Reply. - CORRECT ANSWER✔✔- Address Resolution Protocol (ARP)
Where should an administrator place an internet-facing host on the network?
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