Quiz: Module 03 Addressing

Which part of a MAC address is unique to each manufacturer?

a. The device identifier

b. The OUI

c. The physical address

d. The network identifier

What type of device does a computer turn to when attempting to connect with a host with a known IP address on another network?

a. Root server

b. Default gateway

c. DNS server

d. DHCP server

What decimal number corresponds to the binary number 11111111?

a. 127

b. 256

c. 255

d. 11,111,111

Suppose you send data to the 11111111 11111111 11111111 11111111 IP address on an IPv4 network. To which device(s) are you transmitting?

a. The one device that is configured with this IP address

b. No devices

c. All devices on the Internet

d. All devices on your local network

When your computer first joins an IPv6 LAN, what is the prefix of the IPv6 address the computer first configures for itself?

a. FF00::/8

b. ::1/128

c. 2000::/3

d. FE80::/64

If you are connected to a network that uses DHCP, and you need to terminate your Windows workstation's DHCP lease, which command would you use?

a. ipconfig /renew

b. ifconfig /release

c. ifconfig /renew

d. ipconfig /release

Which of these commands has no parameters in Windows?

a. nslookup

b. hostname

c. ping

d. ipconfig

Which DNS server offers the most current resolution to a DNS query?

a. Caching DNS server

b. TLD DNS server

c. Root DNS server

d. Primary DNS server

You have just brought online a new secondary DNS server and notice your network-monitoring software reports a significant increase in network traffic. Which two hosts on your network are likely to be causing the increased traffic and why?

a. The caching and primary DNS servers because the caching server is requesting zone transfers from the primary server

b. The root and primary DNS servers because the primary server is requesting zone transfers from the root server

c. The secondary and primary DNS servers because the secondary server is requesting zone transfers from the primary server

d. The web server and primary DNS server because the web server is requesting zone transfers from the primary DNS server

Which type of DNS record identifies an email server?

a. AAAA record

b. CNAME record

c. PTR record

d. MX record

 What is the functionality of a DNS Server?

Resolving hostnames to IP addresses

Why would an additional DNS server be implemented in a network?To ensure high-availability of the DNS Server
Which of the following command can be used to refresh the DNS records on a host device?ipconfig /registerdns

What is the function of an A host record in DNS?Points an IP address to a static device
(name-to-address mapping for a host)
What is the functionality of an MX record on a DNS server?

It points to the SMTP server for the domain

Live Virtual Machine Lab 3.4: Module 03 Configuring and Maintaining DNS Servers

Live Virtual Machine Lab 3.3: Module 03 NTP Server Management

 Which of the following Stratum Levels is the least Trusted?

Level 15

Each hop between NTP servers increases the stratum number by 1 up to 16
Which of the following command-line commands would display time sync information for an NTP client?

 w32tm /query /peers

What is the maximum number of NTP Servers that an NTP client can be synchronized with?1
Which of the following port is used by NTP Servers to provide time synchronization?124
Which Transport Layer protocol is used by NTP Servers to provide time synchronization?UDP

Live Virtual Machine Lab 3.1

 Which of the following is a Class C Private IP address?

192.168.0.10

(Class A Private IP range is 10.0.0.0 - 10.255.255.255.

The Class B Private IP range is 172.16.0.0 - 172.31.255.255.

Class C Private IP address is 192.168.0.0 - 192.168.255.255. )


What is the Subnet Mask for a Classful Class A IP range?255.0.0.0
What would the subnet mask be of the following network range?
192.168.1.0/28255.255.255.240
Which of the following is the Loopback address for IPv4?

127.0.0.1

What is the functionality of a Multicast IP address?

Sends network communication to a specific set of hosts

Live Virtual Machine Lab 3.2: Module 03 Install and Configure DHCP and DNS Servers

 What is the purpose of implementing a DHCP server on a network? [Choose all that apply]

Automatically assign a DNS server address to a host

Dynamically allocate IP addresses to hosts on the network

After installation of the DHCP server role, why is it necessary to restart the DHCP service?

To ensure the credentials that were stipulated is applied
What is the functionality of a lease for a DHCP server?

It stipulates how long an IP address will be allocated to a host
When creating a scope on a DHCP server, what is the purpose of specifying an exclusion?

An exclusion is specified to ensure specific IP addresses are not automatically allocated to hosts
On which server will the DHCP server role normally be installed?

Domain Member Server

Simulation Lab 3.2: Module 03 DNS Cache

 

Simulation Lab 3.1: Module 03 Change IPv6 Auto-Configuration Settings

 

Self-Check 3-5

What protocol does ping use?

a. FTP

b. DHCP

c. HTTP

d. ICMP

 Which command disables a computer's connection to the network?

a. sudo ip link set eth0 up

b. ipconfig /release

c. ping localhost

d. sudo hostname testVM

What problem will ping google.com check for that ping 8.8.8.8 will not?

a. DHCP scope exhaustion

b. Name resolution issues

c. Default gateway configuration

d. Incorrect DNS server