Networking Concepts Flashcards
Net+ certification (11 cards)
Which layer of the OSI model do routers operate at?
A. Transport
B. Data Link
C. Session
D. Network
Which layer of the OSI model are web browsers and email clients implemented at?
A. Layer 5
B. Layer 7
C. Layer 4
D. Layer 6
Match network protocols and services to the OSI model layer in which they are implemented. To answer, drag the appropriate OSI layer to each protocol or service. An OSI layer may be used once, more than once, or not at all.
OSI Layers: Physical, Data link, Network, Transport, Session, Presentation, Application.
DHCP = Application
SMTP = Application
ICMP = Network
TCP = Transport
DNS = Application
FTP = Application
Networking Basics: TCP vs UDP, TCP/IP vs OSI, and More
Windows network architecture and the OSI model
OSI Seven Layers Model Explained with Examples
The Layers of the OSI Model Illustrated
A company has deployed a new access point. A network administrator wants to proactively monitor the number of connected clients and available resources using a secure protocol. What Layer 7 network protocol should be used?
A. SNMP
B. SMTP
C. Telnet
D. SSH
Which OSI layer uses segments as its PDU?
A. Data link
B. Transport
C. Network
D. Physical
Which OSI layer relies on burned-in hardware addresses?
A. Data Link
B. Network
C. Session
D. Transport
Compare characteristics of NAS and SAN storage technologies. To answer, choose the appropriate storage type from the drop-down menus.
Storage Types: NAS or SAN.
Emulates directly attached storage for servers accessing storage = SAN.
Maintains its own file system, and data access is through remote file system I/O = NAS.
Structured as a dedicated network consisting of multiple storage devices = SAN.
Preferred solution when extreme high-speed data transfer is required = SAN.
SAN vs. NAS
SAN vs. NAS vs. DAS: Key differences and best use cases
A network technician wants to deploy a new virtual firewall. The firewall has to support three interfaces: G0/0, G0/1, and G0/2. What should the technician configure at the VM level for these interfaces?
A. VLAN
B. iSCSI
C. vNIC
D. Trunk
Which mechanism monitors and manages virtual machine instances?
A. VLAN
B. vNIC
C. VIP
D. Hypervisor
D. Hypervisor
Which network device uses ASICs to handle the packet switching for inter-VLAN communication?
A. L4 router
B. L2 switch
C. L7 firewall
D. L3 switch
What are two main differences between a hub and a switch? (Select TWO.)
A. Hubs work at Layer 1, while switches work at Layer 2.
B. Hubs unicast all packets, while switches broadcast all messages.
C. Hubs do not understand MAC addresses, while switches maintain a CAM address table.
D. Hubs can be managed using HTTP, while switches offer a command-line interface only.
E. Hubs are limited to four ports, while switches offer an unlimited number of ports.
A. Hubs work at Layer 1, while switches work at Layer 2.
C. Hubs do not understand MAC addresses, while switches maintain a CAM address table.
What’s the Difference Between a Hub, a Switch, and a Router?
