Nortel Data Networking Technology
Submitting some questions
with some changes. The original is also available in
QUESTION NO: 1
An Ethernet switch connects to the core switch with
two fiber ports in a link aggregation group created
through LACP. One of the fiber connections was damaged,
and the network administrator wants to create a link
aggregation group with the remaining fiber link and
two of the copper ports. Which constraint on the link
aggregation group must the administrator be aware of?
A. Links in a link aggregation group may combine multiple
speeds and media types.
B. Links in a link aggregation group must operate at
the same speed and use the same media type.
C. Links in a link aggregation group must use the same
speed, but can combine multiple media types.
D. Links in a link aggregation group must use the same
media type, but can combine multiple speeds.
QUESTION NO: 2
A department was moved from one floor to another. When
the department was on the old floor, the users connected
through a mixture of 10 Mb hubs and 10/100 Mb switches.
When the department was moved all the hubs were replaced
by 10/100 Mb switches. Two of the users are reporting
that the network is much slower on the new floor even
though the hubs were replaced. You discover that the
switch ports these users connect to were used to connect
to the hubs and are manually configured for 10Mb half-duplex.
The PCs were connected to the switch and were manually
configured for 100 Mb full-duplex. What could have been
done to avoid this issue?
A. Auto-negotiation only needed to be enabled on the
B. Auto-negotiation should have been enabled on the
switch ports and on the PCs.
C. Auto-sensing only needed to be enabled on the switch.
D. Auto-sensing should have been enabled on the switch
ports and on the PCs.
QUESTION NO: 3
A corporation has decided to save money and buy remanufactured
IP telephones. They purchased Phase 1 (One) IP telephones
that do not support Power-over-Ethernet (PoE). The Ethernet
Switches they purchased do supply PoE per the IEEE 802.3af
specifications. Which statement regarding the Phase
1 IP telephones is true?
A. They must be plugged into AC power outlets to function.
B. They can use a power splitter to receive both power
and data from the Ethernet Switch.
C. They can use a power splitter to receive both power
and data from the Ethernet Switch, but must also be
attached to an AC outlet to boot and acquire an IP address.
D. They must be plugged into AC power outlets to boot
and acquire an IP address. After the telephone is operating,
it can operate off the Ethernet Switch only.
QUESTION NO: 4
Which order is correct for these components in the Ethernet
A. Destination MAC address, source MAC address, length/type
field, data, FCS
B. Destination MAC address, source MAC address, data,
length/type field, FCS
C. Source MAC address, destination MAC address, length/type
field, data, FCS
D. Source MAC address, destination MAC address, data,
length/type field, FCS
QUESTION NO: 5
Occasionally, a switch will receive frames faster than
it can process them. The buffers on the switch become
congested, and the switch begins to discard incoming
frames because it has no place to store them. If 802.3x
flow control is supported, what is the resultant behavior
in a congestion situation?
A. Switches become overloaded.
B. Switch buffer congestion results.
C. The receiving switches send pause frames to slow
D. The receiving switches discard frames until the overloaded
condition is resolved.
QUESTION NO: 6
Which function do Route policies on the Ethernet Routing
Switch (ERS) perform?
A. Route policies can flush and clear the IP routing
B. OSPF redistribute function is used to propagate OSPF
routes within a single area.
C. RIPannounce policies determine how RIP learned routes
are represented in the routing table.
D. BGP redistribute function may be used to advertise
OSPF learned routes using BGP.
QUESTION NO: 7
Equal Cost MultiPath (ECMP) provides the ability to
load-balance Layer 3 links and also to provide redundancy.
When ECMP is enabled, which set of criteria initiates
A. OSPF and RIP have no overlapping network advertisements.
B. OSFP or RIPhave learned duplicate routes with the
same cost or metric.
C. OSPF and RIP have identical network advertisements
with the same cost.
D. OSPF and RIP are used in parallel with network advertisements
with different costs.
QUESTION NO: 8
You are configuring a static route on an Ethernet Routing
Switch (ERS). Which parameter must you specify?
A. An IP address for device management purposes
B. An interface IP address in the routing table for
C. An interface IP address of the next-hop router as
a destination in the routing table
D. An IP address for a network to be listed in the routing
table by the network manager
QUESTION NO: 9
With respect to the function of the IEEE 802.1s Multiple
Spanning Tree Protocol (MSTP), which statement is false?
A. MSTP creates a separate spanning tree group for each
B. Each VLAN runs the Spanning Tree algorithm only within
C. The MSTI messages allow each spanning tree group
to support multiple VLANs.
D. The default spanning tree group in MSTP is called
the Common and Internal Spanning Tree (CIST).
QUESTION NO: 10
You are designing a large network and are using Open
Shortest Path First (OSPF) for its efficiency with convergence
times and its amount of traffic control. Which statement
describes how OSPF accomplishes this?
A. The metric is dynamic for each link.
B. The metric is independent of the link speed.
C. The metric reflects the link speed.
D. The metric is the same regardless of link speed.
QUESTION NO: 11
When forming an OSPF adjacency, what is the purpose
of the OSPF database description packets?
A. To request the description of the neighboring router
B. To acknowledge the route description in each packet
C. To identify the type of protocol to use while forming
D. To learn which LSAs are not yet in the local database
and which ones are out of date