16) Comparing WAN Links and Remote Access Methods Flashcards
An organization tasks a network engineer with purchasing an access/gateway that extends the local network access over an intermediate public network so a remote computer can join the local network. What access/gateway will the engineer acquire?
A. Site-to-Site VPN
B. Remote Access VPN
C. Hub and Spoke VPN
D. VPN headend
B. Remote Access VPN
A remote access VPN refers to extending local network access over an intermediate public network so that a remote computer can join the local network.
The network engineer can also deploy a VPN in a site-to-site model to connect two or more private networks. The configuration of a site-to-site VPN is to operate automatically.
A site-to-site VPN that involves more than two sites connects the remote sites (or spokes) to a headquarters site (hub) by using static tunnels configured between the hub and each spoke. This is referred to as a hub and spoke topology.
This VPN router is also known as a VPN headend. VPN headends would typically install in groups for load balancing and fault tolerance.
A network architect creates a site-to-site VPN involving multiple remotes to a headquarters site by using static tunnels configured between the remote sites and the headquarters site. What is the name of this VPN configuration?
A. VPN
B. Remote Access VPN
C. Hub and Spoke VPN
D. VPN headend
C. Hub and Spoke VPN
A site-to-site VPN that involves more than two sites connects the remote sites (or spokes) to a headquarters site (hub) by using static tunnels configured between the hub and each spoke. This is referred to as a hub and spoke topology.
Most modern remote network access solutions use Internet access infrastructure and set up a secure tunnel for private communications through the internet. This is known as a virtual private network (VPN).
A remote access VPN refers to extending local network access over an intermediate public network so that a remote computer can join the local network.
This VPN router is also known as a VPN headend. VPN headends would typically install in groups for load balancing and fault tolerance.
A network engineer installs a new Virtual Private Network (VPN) set up dynamically according to traffic requirements and demand. What is the type of VPN installed?
A. Dynamic Multipoint VPN
B. Remote Access VPN
C. Hub and Spoke VPN
D. VPN headend
A. Dynamic Multipoint VPN
A dynamic multipoint VPN (DMVPN) allows VPNs to be set up dynamically according to traffic requirements and demand.
A remote access VPN refers to extending local network access over an intermediate public network so that a remote computer can join the local network.
A site-to-site VPN that involves more than two sites connects the remote sites (or spokes) to a headquarters site (hub) by using static tunnels configured between the hub and each spoke. This is referred to as a hub and spoke topology.
This VPN router is also known as a VPN headend. VPN headends would typically install in groups for load balancing and fault tolerance.
A company tasks a network specialist to purchase an access solution that uses internet access infrastructure and a secure tunnel to connect private communications through the internet. What is this access solution?
A. VPN
B. Remote Access VPN
C. Hub and Spoke VPN
D. VPN headend
A. VPN (Virtual Private Network)
Most modern remote network access solutions use Internet access infrastructure and set up a secure tunnel for private communications through the internet. This is known as a virtual private network (VPN).
A remote access VPN refers to extending local network access over an intermediate public network so that a remote computer can join the local network.
A site-to-site VPN that involves more than two sites connects the remote sites (or spokes) to a headquarters site (hub) by using static tunnels configured between the hub and each spoke. This is referred to as a hub and spoke topology.
This VPN router is also known as a VPN headend. VPN headends would typically install in groups for load balancing and fault tolerance.
An organization tasks a network consultant with comparing the costs and requirements for the various types of Carrier Ethernet. The consultant selects a carrier ethernet that uses digital subscriber line (DSL) variants such as single-pair high-speed DSL (SHDSL) and very high-speed DSL (VDSL) to overcome the usual distance limitations of copper Ethernet. What type of carrier ethernet was selected by the consultant?
A. Ethernet over Copper
B. Ethernet over Fiber
C. E-line
D. E-LAN
A. Ethernet over Copper
Ethernet over Copper uses DSL variants such as single-pair high-speed DSL (SHDSL) and very high-speed DSL (VDSL) to overcome the usual distance limitations of copper Ethernet. This does not support the same speeds as LAN Ethernet (more typically 2-10 Mbps), but the organization can combine multiple pairs for higher bandwidth.
Ethernet over Fiber uses the IEEE 802.3 10GBASE-LR and 10GBASE-ER specifications.
E-line establishes a point-to-point link between two sites. An organization can configure multiple E-lines on a single Metro Ethernet interface, with each E-line representing a separate VLAN.
E-LAN establishes a mesh topology between multiple sites.
A company tasks a network technician with installing a VPN router onto one of the company’s larger machines capable of aggregating high traffic volumes. What is the name of this router?
A. VPN headend
B. VPN
C. Remote Access VPN
D. Hub and Spoke VPN
A. VPN headend
The VPN router installed in the central office or hub needs to be a powerful machine capable of aggregating high traffic volumes. This VPN router is also known as a VPN headend. VPN headends would typically install in groups for load balancing and fault tolerance.
Most modern remote network access solutions use Internet access infrastructure and set up a secure tunnel for private communications through the Internet. This is known as a virtual private network (VPN).
A remote access VPN refers to extending local network access over an intermediate public network so that a remote computer can join the local network.
A site-to-site VPN that involves more than two sites connects the remote sites (or spokes) to a headquarters site (hub) by using static tunnels configured between the hub and each spoke. This is referred to as a hub and spoke topology.
A network engineer wants to establish data communications over a greater distance than a Local Area Network (LAN). What can the engineer use to gain the desired distance?
A. WAN
B. T-Carrier
C. Enterprise WAN
D. Digital Subscriber Line
A. WAN (Wide Area Network)
Wide area network (WAN) technologies support data communications over greater distances than LANs. Long-distance communications usually involve the use of public networks. Public networks are owned by telecommunications (telco) companies and provide WAN services to businesses and households.
The T-carrier system was developed by the telecommunications provider Bell Labs. This system allows a user to place multiple calls on a single cable.
The term enterprise WAN describes a WAN operated and controlled by a single organization.
Digital subscriber line (DSL) is a technology for transferring data over voice-grade telephone lines, often referred to as the local loop.
A network engineer is assigned to locate and acquire a data communications network controlled by a single organization. What is the name for this type of network?
A. WAN
B. T-Carrier
C. Enterprise WAN
D. Digital Subscriber Line
C. Enterprise WAN
The term enterprise WAN describes a WAN operated and controlled by a single organization.
Wide area network (WAN) technologies support data communications over greater distances than LANs. Long-distance communications usually involve the use of public networks. Public networks are owned by telecommunications (telco) companies and provide WAN services to businesses and households.
The T-carrier system was developed by the telecommunications provider Bell Labs. This system allows a user to place multiple calls on a single cable.
Digital subscriber line (DSL) is a technology for transferring data over voice-grade telephone lines, often referred to as the local loop.
An organization tasks a network consultant with comparing costs for the business to acquire a technology that allows data to transfer over voice-grade telephone lines. What is this technology?
A. FTTP
B. Enterprise WAN
C. T-Carrier
D. Digital Subscriber Line
D. Digital Subscriber Lane
Digital subscriber line (DSL) is a technology that can transfer data over voice-grade telephone lines, often referred to as the local loop.
The major obstacle to providing WAN access that can approach LAN performance is bandwidth in the last mile. The most expensive solution is Fiber to the Premises (FTTP).
The term enterprise WAN describes a WAN that is used and controlled by a single organization.
The T-carrier system was developed by the telecommunications provider Bell Labs. This system allows a user to place multiple calls on a single cable.
An organization tasks a network consultant with comparing the costs and requirements for the various types of Carrier Ethernet. The consultant selects a carrier ethernet that uses digital subscriber line (DSL) variants such as single-pair high-speed DSL (SHDSL) and very high-speed DSL (VDSL) to overcome the usual distance limitations of copper Ethernet. What type of carrier ethernet was selected by the consultant?
A. Ethernet over Copper
B. Ethernet over Fiber
C. E-line
D. E-LAN
A. Ethernet over Copper
Ethernet over Copper uses DSL variants such as single-pair high-speed DSL (SHDSL) and very high-speed DSL (VDSL) to overcome the usual distance limitations of copper Ethernet. This does not support the same speeds as LAN Ethernet (more typically 2-10 Mbps), but the organization can combine multiple pairs for higher bandwidth.
Ethernet over Fiber uses the IEEE 802.3 10GBASE-LR and 10GBASE-ER specifications.
E-line establishes a point-to-point link between two sites. An organization can configure multiple E-lines on a single Metro Ethernet interface, with each E-line representing a separate VLAN.
E-LAN establishes a mesh topology between multiple sites.
