Which technology is commonly used for connecting distant locations in a WAN?
A. Ethernet
B. Wi-Fi
C. MPLS
D. Bluetooth
Answer: C. MPLS
What does MPLS stand for?
A. Multiple Protocol Layer Switching
B. Multi-Path Layer Switching
C. Multi-Protocol Label Switching
D. Multi-Path Label Switching
Answer: C. Multi-Protocol Label Switching
Which of the following is a WAN protocol?
A. OSPF
B. BGP
C. HTTP
D. FTP
Answer: B. BGP
What is the primary function of a router in a WAN?
A. To connect devices within a local network
B. To provide IP addresses
C. To route data packets between different networks
D. To manage data storage
Answer: C. To route data packets between different networks
Which layer of the OSI model do WAN technologies primarily operate at?
A. Physical
B. Data Link
C. Network
D. Transport
Answer: C. Network
Frame Relay is an example of which type of WAN technology?
A. Circuit-switched
B. Packet-switched
C. Cell-switched
D. Line-switched
Answer: B. Packet-switched
Which of the following uses cell-switching technology?
A. ATM
B. Frame Relay
C. X.25
D. MPLS
Answer: A. ATM
In which WAN technology does the term “virtual circuit” apply?
A. Ethernet
B. Wi-Fi
C. Frame Relay
D. Bluetooth
Answer: C. Frame Relay
Which of the following protocols is used to establish a secure VPN connection?
A. FTP
B. HTTPS
C. IPSec
D. SMTP
Answer: C. IPSec
Which WAN technology is known for high-speed connections over long distances using fiber optics?
A. DSL
B. Cable
C. SONET
D. Ethernet
Answer: C. SONET
What is the purpose of the WAN interface card (WIC)?
A. To connect LANs
B. To interface with the network layer
C. To connect a router to a WAN service
D. To connect wireless devices
Answer: C. To connect a router to a WAN service
Which protocol is used for automated IP addressing over a WAN?
A. ARP
B. DHCP
C. TCP
D. HTTP
Answer: B. DHCP
What does the term “leased line” refer to in WAN connectivity?
A. A dial-up connection
B. A temporary network connection
C. A permanently established network link
D. A satellite link
Answer: C. A permanently established network link
Which of the following is a characteristic of MPLS?
A. Uses IP addresses exclusively
B. Relies on layer 2 addresses
C. Can carry multiple types of network traffic
D. Is only used in local networks
Answer: C. Can carry multiple types of network traffic
What does the acronym “VPN” stand for?
A. Virtual Protocol Network
B. Virtual Private Network
C. Virtual Public Network
D. Verified Private Network
Answer: B. Virtual Private Network
Which WAN technology uses labels to route packets?
A. ATM
B. Frame Relay
C. MPLS
D. X.25
Answer: C. MPLS
What is the typical use of a T1 line in a WAN?
A. To connect two computers directly
B. To provide high-speed internet access
C. To connect multiple LANs
D. To host websites
Answer: C. To connect multiple LANs
Which protocol is often used for WAN data link encapsulation?
A. PPP
B. UDP
C. HTTP
D. SMTP
Answer: A. PPP
What type of network is typically used for international business connectivity?
A. PAN
B. LAN
C. WAN
D. MAN
Answer: C. WAN
Which technology can provide broadband internet access over telephone lines?
A. DSL
B. Cable
C. Fiber
D. Satellite
Answer: A. DSL
What does SONET stand for?
A. Synchronous Optical Network
B. Synchronous Original Network
C. Systematic Optical Network
D. Systematic Original Network
Answer: A. Synchronous Optical Network
Which WAN protocol is used for reliable data transfer across unreliable networks?
A. IP
B. TCP
C. UDP
D. ICMP
Answer: B. TCP
What is the maximum data rate of a T1 line?
A. 1.544 Mbps
B. 2.048 Mbps
C. 3.072 Mbps
D. 4.096 Mbps
Answer: A. 1.544 Mbps
Which of the following is NOT a WAN topology?
A. Star
B. Ring
C. Bus
D. Mesh
Answer: C. Bus
Which protocol allows multiple virtual networks over a single physical WAN link?
A. VLAN
B. VPN
C. MPLS
D. DNS
Answer: C. MPLS
What is the main advantage of using fiber optics in WANs?
A. Low cost
B. High bandwidth
C. Simple installation
D. Wireless connectivity
Answer: B. High bandwidth
Which layer of the OSI model is responsible for end-to-end communication?
A. Data Link
B. Network
C. Transport
D. Application
Answer: C. Transport
What does the term “latency” refer to in a WAN?
A. The bandwidth of the connection
B. The delay before a transfer of data begins
C. The reliability of the connection
D. The security of the connection
Answer: B. The delay before a transfer of data begins
Which device is used to connect different WANs together?
A. Switch
B. Router
C. Hub
D. Access Point
Answer: B. Router
Which WAN technology can be used to connect remote sites via satellite?
A. DSL
B. MPLS
C. VSAT
D. Frame Relay
Answer: C. VSAT
What does the acronym “ISDN” stand for?
A. Integrated Services Digital Network
B. Internet Services Digital Network
C. Integrated System Digital Network
D. Internet System Digital Network
Answer: A. Integrated Services Digital Network
Which of the following technologies is considered a legacy WAN technology?
A. MPLS
B. Frame Relay
C. VPLS
D. SD-WAN
Answer: B. Frame Relay
What is a characteristic feature of SD-WAN?
A. Centralized control over network traffic
B. Reliance on hardware-based routing
C. Limited scalability
D. Use of traditional WAN protocols
Answer: A. Centralized control over network traffic
Which protocol is commonly used for dial-up internet access?
A. PPP
B. MPLS
C. OSPF
D. BGP
Answer: A. PPP
What is the main benefit of using MPLS in a WAN?
A. Lower cost
B. Improved performance and reliability
C. Easier configuration
D. Wireless connectivity
Answer: B. Improved performance and reliability
What type of traffic is most suitable for MPLS networks?
A. Broadcast traffic
B. Unicast traffic
C. Multicast traffic
D. Any type of traffic
Answer: D. Any type of traffic
Which WAN technology uses cell relay technology?
A. Frame Relay
B. ATM
C. MPLS
D. SONET
Answer: B. ATM
Which protocol provides error detection and correction in WANs?
A. TCP
B. UDP
C. IP
D. ICMP
Answer: A. TCP
What is the purpose of a CSU/DSU in WAN connections?
A. To convert digital signals into analog
B. To provide a physical connection to a LAN
C. To connect a router to a digital circuit
D. To manage wireless connections
Answer: C. To connect a router to a digital circuit
Which technology is typically used for high-speed, point-to-point connections in WANs?
A. DSL
B. Ethernet over MPLS
C. Frame Relay
D. Dial-up
Answer: B. Ethernet over MPLS
Which layer of the OSI model does IP operate at?
A. Physical
B. Data Link
C. Network
D. Transport
Answer: C. Network
What does the term “jitter” refer to in a WAN?
A. The average latency of the network
B. The variation in packet arrival times
C. The maximum bandwidth of the connection
D. The error rate of the connection
Answer: B. The variation in packet arrival times
Which of the following is a satellite-based WAN technology?
A. VSAT
B. MPLS
C. Ethernet
D. Wi-Fi
Answer: A. VSAT
What is the maximum data rate of an E1 line?
A. 1.544 Mbps
B. 2.048 Mbps
C. 3.072 Mbps
D. 4.096 Mbps
Answer: B. 2.048 Mbps
Which technology allows for secure remote access over the internet?
A. MPLS
B. VPN
C. Frame Relay
D. Ethernet
Answer: B. VPN
Which WAN technology uses labels to forward packets through the network?
A. Frame Relay
B. MPLS
C. ATM
D. SONET
Answer: B. MPLS
What is the main purpose of a WAN?
A. To connect devices within a single building
B. To connect local networks over a large geographical area
C. To provide internet access to individual users
D. To manage data storage
Answer: B. To connect local networks over a large geographical area
Which technology is often used for WAN optimization?
A. SD-WAN
B. Wi-Fi
C. Ethernet
D. Dial-up
Answer: A. SD-WAN
What does the term “bandwidth” refer to in the context of WANs?
A. The number of users that can be supported
B. The speed at which data is transmitted
C. The physical distance the data can travel
D. The type of encryption used
Answer: B. The speed at which data is transmitted
Which WAN technology is specifically designed to transport voice and data traffic?
A. MPLS
B. ISDN
C. Frame Relay
D. Ethernet
Answer: B. ISDN