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WorksheetsData Communication and Networking 3 Prefinal Exam
Total questions: 61
Worksheet time: 1hrs 1mins
Which of the following best describes an IP address?
A text-based label for a file
A numerical label for a device
A security code for a user account
A routing table entry in a switch
Which version of IP uses 32-bit numeric addresses?
IPv6
IPv5
IPv4
IPv3
Which IP version uses hexadecimal numbers separated by colons?
IPv3
IPv4
IPv5
IPv6
Which class does the IP address 10.1.2.3 belong to?
Class B
Class A
Class D
Class C
Which class does the IP address 172.16.5.10 belong to?
Class C
Class E
Class A
Class B
Which class does the IP address 192.168.1.15 belong to?
Class D
Class C
Class B
Class A
Which class of IP addresses is used for multicast?
Class D
Class B
Class C
Class E
Which class of IP addresses is reserved for experimental use?
Class B
Class D
Class A
Class E
What is the default subnet mask of a Class B network?
255.0.0.0
255.255.255.0
255.255.0.0
255.255.255.255
Which of the following IP addresses is a private Class A address?
10.25.5.7
8.8.8.8
172.15.0.1
192.0.0.1
Which of the following IP addresses is a private Class B address?
172.16.10.1
172.10.10.1
10.255.10.10
192.0.0.100
Which of the following IP addresses is a private Class C address?
192.0.10.1
192.168.5.5
193.168.10.10
194.100.100.1
For IP 192.168.1.10 with subnet mask 255.255.255.0, what is the network ID?
192.168.1.0
192.168.1.1
192.168.0.0
192.168.10.0
The CIDR notation /24 is equivalent to which subnet mask?
255.255.0.0
255.255.255.0
255.0.0.0
255.255.255.255
Which of the following IPs is public and routable on the Internet?
10.0.0.1
172.20.10.1
192.168.1.1
8.8.8.8
What is the main goal of network monitoring?
To install new applications
To detect and solve problems
To delete unused user accounts
To upgrade router firmware
Which tool is used to monitor and manage network devices?
SMTP
SNMP
DHCP
FTP
Which component of SNMP is responsible for collecting and analyzing data?
Managed Device
SNMP Agent
Network Management System
Routing Table Unit
Which SNMP metric helps check router interface traffic?
Memory Load
Disk Usage
Interface Traffic
Temperature Level
Which SNMP metric would you monitor to detect CPU overutilization?
Port Status
CPU Usage
VLAN Table
IP Routing
What does NetFlow primarily collect for network analysis?
IP Traffic Information
Wireless Signal Strength
User Authentication Logs
Operating System Errors
Which tool allows analysis of which hosts consume the most bandwidth?
FTP Server
DHCP Manager
NetFlow
Ping Utility
Which tool captures and analyzes network packets?
Wireshark
SNMP
NetFlow
Ansible
Which packet capture tool uses a command-line interface?
Wireshark
tcpdump
NetFlow
Ansible
Which statement about tcpdump is TRUE?
It is built into every OS
It must be installed manually
It is only available for Windows
It is used only for routing
Which automation tool is agentless and uses YAML playbooks?
Puppet
Ansible
SNMP
NetFlow
Which configuration management tool uses a client-server model?
NetFlow
SNMP
Puppet
Ansible
Which of the following is NOT a step in developing a monitoring plan?
Configure alerts for thresholds
Define key performance indicators
Install new operating systems
Identify critical devices and links
Which combination of tools is best for a large multinational network?
DHCP and DNS
SNMP, NetFlow, and Packet Sniffers
FTP and SSH
HTTP and HTTPS
In a network monitoring plan, which tool would detect unusual traffic behavior?
NetFlow
SNMP
Puppet
Ansible
What is virtualization in networking mainly used for?
Running faster gaming systems
Creating virtual network functions
Installing physical routers faster
Building longer network cables
What does SDN stand for in networking?
Software Data Node
Software-Defined Networking
System Device Network
Server Distribution Network
In SDN, which part decides how data should flow?
Data Plane
Control Plane
Access Layer
Transport Layer
What does the SDN controller do?
Controls cable management
Manages network traffic flow
Replaces all switches manually
Installs operating systems
Which is one main benefit of SDN?
Slower data transmission
More manual configuration
Centralized control and flexibility
Higher hardware costs
What does NFV stand for in networking?
Network File Variable
Network Function Virtualization
Network Flow Vector
Network Fiber Virtual
Which of these can be virtualized through NFV?
Firewalls and routers
Keyboards and monitors
Hard drives and RAM
Mouse and printers
What is one benefit of NFV in enterprises?
More expensive hardware
Flexible and scalable services
Reduced cloud capacity
Limited network automation
How do SDN and NFV work together?
SDN manages hardware, NFV creates software
NFV manages users, SDN controls Wi-Fi
SDN builds cables, NFV builds routers
NFV replaces cloud storage
Which company uses SDN or NFV in real-world networks?
Cisco
Sony
Adidas
Netflix
What does cloud networking mainly provide?
Physical device sharing
Internet-based network resources
Manual configuration setup
Local hardware expansion
Which is an example of a public cloud provider?
Amazon Web Services
Local data center
Company intranet
Private LAN server
What defines a private cloud environment?
Shared with multiple companies
Managed internally by one organization
Owned by cloud providers
Used only for entertainment
Why do companies choose a hybrid cloud setup?
To combine public and private benefits
To remove all local networks
To block external connections
To limit scalability features
Which cloud model offers a mix of scalability and control?
Public Cloud
Private Cloud
Hybrid Cloud
Open Cloud
The subnet mask 255.255.255.0 corresponds to CIDR notation (a) .
A /28 subnet provides (a) usable host addresses.
If you borrow 3 bits from a Class C network, you will create (a) subnets.
For the network 192.168.10.0/24 divided into 4 subnets, the new subnet mask is (a) .
If a PC has IP 192.168.1.66/26, its network ID is (a) .
Using the same IP 192.168.1.66/26, its broadcast address is (a) .
In the subnet 192.168.1.64/26, a PC has the IP address 192.168.1.66.
The default gateway for this subnet is often assigned as the first usable IP, which is (a) .
If a subnet needs 50 usable hosts, the smallest possible CIDR prefix is (a) .
For network 10.0.0.0/8 divided into 16 subnets, the new subnet mask is (a) .
If the router interface for the subnet 192.168.5.0/26 uses the first usable IP, its address should be (a) .
A network 192.168.20.0/24 needs to be divided into 4 subnets. The new subnet mask in CIDR notation will be (a) .
When subnetting 192.168.10.0/24 into 8 subnets, each subnet will have (a) usable hosts.
A subnet with a /28 mask provides (a) usable host IP addresses.
The broadcast address of the subnet that starts at 192.168.5.128/26 is (a) .
If a subnet has the network address 10.0.4.0/22, its last usable host IP is (a) .
We live in an age of algorithms and artificial intelligence, yet the greatest design ever made is not digital—it’s human. The Bible reminds us that “It is not good for man to be alone” (Genesis 2:18), showing that connection and relationship are part of our divine design. But this design goes beyond human relationships—beyond friendship, affection, or family—it points us to something higher. We were created not only for connection with one another, but for communion with the Divine Himself.
Einstein once said, “The more I study science, the more I believe in God,” because he saw order in the universe—gravity, light, and atoms—all following measurable laws. DNA, the “divine source code,” proves that information comes from intelligence, and that we are “fearfully and wonderfully made” (Psalm 139:14).
The universe had a beginning, but God did not—He is eternal, the “Alpha and Omega” (Revelation 1:8). That’s why faith and science do not conflict; they confirm each other.
Through Christ, what separated us from God—sin—has been conquered. Jesus took our place, died, and rose again, proving His love and giving us life abundant (John 10:10).
We are invited not to religion, but to relationship; not to mere existence, but to excellence, living for something greater—His glory.
According to Genesis 2:18, it is not good for man to be (a) .
Einstein said that the more he studied science, the more he believed in (a) .
DNA is described as the “divine source (a) ” that reveals an intelligent Creator.
Psalm 139:14 says, “I am fearfully and (a) made.”
The universe had a beginning, but God is (a) , meaning He has no start or end.
Sin separates people from God, but (a) restored the connection by dying for us.
John 10:10 says Jesus came so that we may have life and have it more (a) .
Faith and (a) do not conflict, because both reveal truth about creation.
We are called not to religion, but to a personal (a) with God.
Living with excellence and creativity in your field—IT, animation, or design—should be for God’s (a) , not to prove greatness or boast, but to show humility and purpose in your work.
