Network Design Elements And Components

Network Design Elements And Components
Network Design Elements And Components
1. The organization requires email traffic in a DMZ segment, which of
the following TCP ports will be open? (Select all correct answers.)
❍ A. 110
❍ B. 21
❍ C. 25
❍ D. 443
2. Which of the following UDP ports must be open to allow SNMP
traffic through the router?
❍ A. 161
❍ B. 162
❍ C. 443
❍ D. 4445
3. Which of the following best describes a demilitarized zone (DMZ)?
❍ A. A small network between the database servers and file
servers
❍ B. A small network between the internal network and the
Internet
Network Design Elements And Components
❍ C. A portion of the internal network that uses web-based
technologies
❍ D. A portion of the internal infrastructure used in business-to-business relationships
Quick Answer:
Quick Check ✓
107
Detailed Answer: 114
Quick Answer: 107
Detailed Answer: 114
Quick Answer: 107
Detailed Answer: 114
Quick Answer: 107
Detailed Answer: 114
82 Chapter 2
Network Design Elements And Components
4. Which of the following best describes a virtual local-area network
(VLAN)?
❍ A. A method to allow multiple computers to connect to
the Internet using one IP address
❍ B. A method to unite network nodes physically into the
same broadcast domain
❍ C. A method to split one network into two using routers
to connect them together
❍ D. A method to unite network nodes logically into the
same broadcast domain
5. Which of the following best describes Network Address
Translation (NAT)?
❍ A. A method to allow multiple computers to connect to
the Internet using one IP address
❍ B. A method to unite network nodes physically into the
same broadcast domain
❍ C. A method to split one network into two using routers
to connect them together
❍ D. A method to unite network nodes logically into the
same broadcast domain
6. Which of the following best describes subnetting?
❍ A. A method to allow multiple computers to connect to
the Internet using one IP address
❍ B. A method to unite network nodes physically into the
same broadcast domain
❍ C. A method to split one network into two using routers
to connect them together
❍ D. A method to unite network nodes logically into the
same broadcast domain
7. Which of the following is the most important security aspect of
using Network Address Translation (NAT)?
❍ A. It unites network nodes logically into the same broadcast domain.
❍ B. It hides the internal network from the outside world.
❍ C. It allows users to be grouped by department rather
than location.
❍ D. It allows external users to access necessary information.
Quick Answer:
Quick Check ✓
107
Detailed Answer: 115
Quick Answer: 107
Detailed Answer: 115
Quick Answer: 107
Detailed Answer: 115
Quick Answer: 107
Detailed Answer: 115
Domain 2.0: Network Infrastructure 83
Network Design Elements And Components
8. Which of the following is the most common reason networks are
subnetted?
❍ A. To allow logical division on the same broadcast
domain
❍ B. To hide the internal network from the outside world
❍ C. For easier application of security policies
❍ D. To control network traffic
9. Which of the following private IP address ranges should be used
for the internal network when there are 100 host systems?
❍ A. 10.x.x.x
❍ B. 172.16.x.x
❍ C. 192.168.1.x
❍ D. 224.1.1.x
10. When a client machine receives an IP address of 169.254.0.15, it
is an indication of which of the following?
❍ A. The client cannot contact the DHCP server.
❍ B. The client has a corrupt routing table.
❍ C. The client has a manually configured address.
❍ D. The client cannot contact the DNS server.
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