A company has a backup T1 link to its corporate head office. To minimize costs, the company will
use the T1 link only for email downloads from the corporate email server. The PPP dialer initiates
only when the internal server initiates an email connection to the corporate email server. However,
the PPP connection does not disconnect after emails are downloaded. What is the cause of this
issue?

A router is unable to route packets over a PPPoE link. What could be the cause of this issue?

Two routers that use a POS interface are connected back-to-back. The interfaces are operational
with no alarms appearing. When the routers are connected using an SDH network, alarms appear
on the router and the interface status goes down. Which action will fix this issue?

Refer to the exhibit.

The link payload rate is subdivided into multiple fixed-rate channels. In addition, the data rate of a
single cell or packet flow is limited by the bandwidth of an individual channel. If the link is an OC-
48, into how many channels can the link be subdivided?

A company is using a Layer 2 Frame Relay network. Which circuit emulation will a network
engineer use to extend the customer Frame Relay network over the Service Provider backbone?

Refer to the exhibit.

An MPLS VPN service has been provisioned for an ABC customer. Based on the output from the
VRF BGP configuration of PE1 and PE2, which statement describes the route exchange between
ABC site 1 and site 2?

A network engineer observes increasing output drops on the serial interface. Which two solutions
can be implemented to minimize these drops? (Choose two.)

A network engineer is connecting a router that is not manufactured by Cisco to a Cisco 7613
Router with a 10 Gigabit Ethernet Route Switch Processor uplink interface. The uplink interface is
not in shutdown mode, but the interface does not come up. What is the most likely cause of the
issue in this scenario?

An ISP provides DSL services to home customers. Each customer is given a username and a
password. The ISP RADIUS server is configured to send a challenge to its clients along with the
server hostname. Which two protocols should be used to deliver this service? (Choose two.)

Refer to the exhibit.

A home office user sends IP datagrams from the local router, which sends Ethernet datagrams to
the DSL modem. The DSL modem encapsulates the Ethernet frames in which frame format before
sending them over the physical DSL link to DSLAM?