Mindtap Questions Mod 7

The traffic that enters into a network is known as the ___________ traffic. East Southbound West Northbound

Southbound

Which tier in the three-tiered network is responsible for routing traffic in and out of a network? Distribution Edge Core Aggregation

Core

How many tiers are there in the spine and leaf network architecture? 4 1 2 3

2

At which layer in Software Defined Network (SDN) will you find a firewall? Infrastructure Layer Control Layer Management Plane Layer Application Layer

Application Layer

Which storage area network (SAN) connection type uses an Ethernet switch to send commands to the SAN devices? Arbitrated loop (FC-AL) Fibre Channel over Ethernet (FCoE) Internet Small Computer Systems Interface (iSCSI) Fibre Channel

Internet Small Computer Systems Interface (iSCSI)

When you set private IP address ranges for servers in your cloud, what service model are you using? a. IaaS b. PaaS c. DaaS d. SaaS

a. IaaS (Infrastructure as a Service) provides virtual hardware services, including network infrastructure devices such as virtual servers and DNS services. PaaS (Platform as a Service) provides a platform on which to test or run code without having to manage the underlying server. SaaS (Software as a Service) consists of applications provided through an online user interface that are compatible with a variety of devices and operating systems. DaaS (Desktop as a Service) is a type of SaaS where you can access a virtual desktop through your browser.

Which protocol balances traffic across multiple links? a. LACP b. CARP c. VIP d. VRRP

a. LACP (Link Aggregation Control Protocol) dynamically coordinates communications between hosts on aggregated connections. A VIP (virtual IP address) is a single IP address that can represent multiple devices in a cluster. CARP (Common Address Redundancy Protocol) allows a pool of computers or interfaces to share one or more IP addresses. CARP is a free alternative to VRRP (Virtual Router Redundancy Protocol), which functions differently than CARP but is used for the same purpose.

Which network architecture technique are you using when you run a virtual router on a network? a. NFV b. STP c. SDN d. SAN

a. NFV (Network Functions Virtualization) is a network architecture that merges physical and virtual network devices. STP (Spanning Tree Protocol) is a switching protocol defined by the IEEE standard 802.1D that prevents traffic loops by artificially blocking the links that would complete a loop. A SAN (storage area network) is a distinct network of storage devices that communicate directly with each other and with other portions of the network. SDN (software-defined networking) is a centralized approach to networking that removes most of the decision-making power from network devices and instead handles that responsibility at a software level.

Which is longer for a reliable device? a. MTBF b. MTTR

a. The MTBF (mean time between failures) is the average amount of time that will pass for devices before the next failure is expected to occur. This should be significantly longer than the MTTR (mean time to repair), which is the average amount of time required to repair a device once it fails.

Which type of switch is best used for connections to web servers? a. Core switch b. Edge switch c. Aggregation switch d. Spine switch

b. Edge switches connect directly to hosts such as servers, printers, and workstations.

Which STP bridge serves as the basis for all path calculations? a. Designated bridge b. Root bridge c. Spanning bridge d. Header bridge

b. Root bridge, or master bridge, provides the basis for all path calculations. Only one root bridge exists on a network. From this root bridge, a series of logical branches, or data paths, emanate like branches on a tree.

Which SAN connection technology can run over ordinary Ethernet NICs without any special equipment needed? a. SATA b. iSCSI c. IB d. FC

b. iSCSI (Internet SCSI) can work on a twisted-pair Ethernet network with ordinary Ethernet NICs. FC (Fibre Channel) requires special hardware: specialized FC switches connect servers with each other and with the outside network. Instead of NICs, FC devices communicate through HBAs (host bus adapters). SATA (Serial Advanced Technology Attachment) cables connect a computer's hard drive to its motherboard. IB (InfiniBand), like FC, requires specialized network hardware.

Which cloud characteristic ensures you can manage cloud resources from an iPad? a. Rapid elasticity b. Resource pooling c. Broad network access d. Multitenancy

c. Broad network access means client devices of all types can access services, applications, and storage in a cloud, no matter what operating system they run or where they are located, if they have an Internet connection.

Which virtual network connection type assigns a VM its IP address from the physical network? a. Private b. Host-only c. NAT d. Bridged

d. Although a bridged vNIC communicates through the host's adapter, it obtains its own IP address, default gateway, and subnet mask from a DHCP server on the physical LAN. In NAT mode, the VM obtains IP addressing information from its host rather than from a server or router on the physical network. In host-only mode, VMs use the DHCP service in the host's virtualization software to obtain IP address assignments. In Hyper-V, the host-only connection type is created by assigning VMs to a private virtual network.

Which SDN plane moves traffic from switch port to switch port? a. Management plane b. Control plane c. Application plane d. Infrastructure plane

d. The infrastructure plane is made up of the physical or virtual devices that handle actual transmissions on the network, moving traffic from each port on a switch to other ports.