- News & Tools
- Exam #1
- This exam includes, but is not limited, to the following:
- Subnetting Tutorial & Reference
- Read / Watch / Do
News & Tools
Access to Blackboard is required to take this exam.
- Make sure to log into Blackboard before the day of the exam, to verify that you know your password and have access to our class section.
- If you have difficulty logging into Blackboard, you may have to reset your password, or contact the CUNY Help Desk.
This exam includes, but is not limited, to the following:
Chapters 1 – 5 from the CCNA Certification Study Guide, Volume 2
- You must be able to correctly answer all of the review questions at the end of each chapter.
- Know and understand the Exam Essentials & terminology from each chapter.
- Chapter 1: Networking Fundamentals
- Chapter 2: TCP/IP
- Chapter 3: Easy Subnetting
- Chapter 4: Troubleshooting IP Addressing
- Chapter 5: IP Routing
- Collision Domains vs Broadcast Domains
- Which device is used to separate broadcast domains?
- How many collision domains does a switch have?
- How many collision domains does a hub have?
- How do VLANs change the topology of the LAN and the Broadcast Domain created by the router?
- Unicast vs Broadcast vs Multicast
- Ethernet cables: Straight-through vs Cross-over vs console
- Which type of cable should be used with “like” devices?
- Which type of cable should be used with “unlike” devices?
- What is CSMA/CD? How does CSMA/CD work?
- The number of bits and number of bytes in different types of addresses: IPv4, IPv6, MAC
OSI Reference Model:
- The names and numbers of all 7 layers of the OSI Reference Model
- The layer name that devices operate on: e.g. Hub, Switch, Router, NIC
- The type of addressing used on Layer 2, and Layer 3
- The layer name that certain protocols operate on: e.g. ARP, IP, TCP, Telnet, FTP
- Which layer of the OSI model is responsible for creating packets?
- Which layer of the OSI model is responsible for creating frames?
- Segmentation and reassembly of data from the upper-layer applications occurs at what layer?
Classfull vs Classless (CIDR) IP addressing
- Define the “default mask”
- Determine the # of bits for: Network, Host, Bits Borrowed.
- Determine the Number of: Subnets, addresses per subnet, Wildcard mask.
- Determine the dotted-decimal mask from the number of host bits or the prefix.
- Count the borrowed bits on your fingers to determine the mask.
- Determine the block size / increment of each subnet, and the correct octet that increments. (The “interesting octet”)
- When subnetting, are we increasing or decreasing the number of 1’s for the network portion of the IP address?
- When supernetting, are we increasing or decreasing the number of 1’s for the network portion of the IP address?
Converting a decimal number to its Base-256 dotted-decimal form.
Know the powers of 2 up to 8192.
VLSM / Classless Subnetting
Route Summarization / Route Aggregation / Network Address Aggregation
- Roles/function, and full name.
- IPv4, DHCP, DNS, ARP, TCP, UDP, ICMP, etc.
You should run each of the commands, and be familiar with, and understand the output/results from each.
- ping <Target IP Address>
- tracert <Target IP Address>
- ipconfig /all
- arp -a
- All four phases of the DHCP handshake, in the correct order, and mode of transmission (unicast, broadcast) for each phase.
- What is the purpose of the DHCP Scope on the DHCP Server?
Read / Watch / Do
- Read Chapter 8 ~ VLANs and Inter-VLAN Routing
- Do the Written Labs
- Answer the Review Questions
- Do not submit your answers for this chapter. The answers are in the Appendix