18 Questions
What is the primary function of the Physical layer in the OSI model?
Physical transmission of data between devices
Which OSI layer is responsible for providing application support?
Application layer
What is the main purpose of the OSI model?
To standardize network communication protocols
Which OSI layer is responsible for routing packets between networks?
Network layer
What is the primary function of the Data Link layer in the OSI model?
Error checking and correction of data
How many layers are there in the OSI model?
7
Which device operates at the physical layer of the OSI model?
Hub
What is the primary role of a wireless access controller (WAC) in a large-scale Wi-Fi network?
Centralize management, configuration, and security of multiple access points (APs) within a network
What is the purpose of network segmentation using VLANs and access control lists (ACLs) in security best practices?
Enhance network security
What is the main difference between TCP port numbers and UDP port numbers in network protocols?
TCP ports are associated with specific applications or services for reliable communication, UDP ports are used for simpler data exchange without guaranteed delivery
What is the primary function of a router in a network?
Route packets between networks
What is the main function of a switch in a network?
Forward packets at the data link layer of the OSI model
Which layer of the OSI model is responsible for error detection and correction?
Data link layer
What is the main advantage of utilizing a content delivery network (CDN) for web performance optimization?
Distributing static content from geographically dispersed servers
What is the purpose of network forensics in cybersecurity incident response?
Collect and analyze digital evidence from network devices and logs
When using EtherChannel, how are individual links aggregated to appear as a single logical link?
By bundling multiple links together
What is the main difference between IPv4 and IPv6 header fields in addressing schemes?
IPv4 header uses 32-bit addressing, IPv6 header uses 128-bit addressing
Which protocol is commonly used for carrying voice traffic over IP networks?
VoIP
Test your knowledge of computer networks and cybersecurity concepts, including content delivery networks, network forensics, and more. Learn about the advantages of CDNs and the importance of network security.
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