CCNA PreTest

Frage 1 von 23

1

Which three statements are true about the operation of a full-duplex Ethernet network?

Wähle eine der folgenden:

There are no collisions in full-duplex mode.
A dedicated switch port is required for each full-duplex node.
The host network card and the switch port must be capable of operating in full-duplex mode.
All of the above.

Erklärung

Frage 2 von 23

1

Which OSI layer header contains the address of a destination host that is on another network?

Wähle eine oder mehr der folgenden:

application
session
transport
network
data link
physical

Erklärung

Frage 3 von 23

1

Which layer of the TCP/IP stack combines the OSI model physical and data link layers?

Wähle eine oder mehr der folgenden:

Internet layer
transport layer
application layer
network access layer

Erklärung

Frage 4 von 23

1

Which protocol uses a connection-oriented service to deliver files between end systems?

Wähle eine oder mehr der folgenden:

TFTP
DNS
FTP
SNMP
RIP

Erklärung

Frage 5 von 23

1

If the hubs in the graphic were replaced by switches, what would be virtually eliminated?

Wähle eine oder mehr der folgenden:

broadcast domains
repeater domains
Ethernet collisions
signal amplification
Ethernet broadcasts

Erklärung

Frage 6 von 23

1

If host A sends an IP packet to host B, what will the source physical address be in the frame when
it reaches host B?

Wähle eine oder mehr der folgenden:

10.168.10.99
10.168.11.88
A1:A1:A1:A1:A1:A1
B2:B2:B2:B2:B2:B2
C3:C3:C3:C3:C3:C3
D4:D4:D4:D4:D4:D4

Erklärung

Frage 7 von 23

1

HostX is transferring a file to the FTP server. Point A represents the frame as it goes toward the
Toronto router. What will the Layer 2 destination address be at this point?

Wähle eine oder mehr der folgenden:

abcd.1123.0045
192.168.7.17
aabb.5555.2222
192.168.1.1
abcd.2246.0035

Erklärung

Frage 8 von 23

1

Which network device functions only at Layer 1 of the OSI model?

Wähle eine oder mehr der folgenden:

Bridge
HUB
NIC
Router
Switch

Erklärung

Frage 9 von 23

1

The host in Kiev sends a request for an HTML document to the server in Minsk. What will be the
source IP address of the packet as it leaves the Kiev router?

Wähle eine der folgenden:

10.1.0.1
10.1.0.5
10.1.0.6
10.1.0.14
10.1.1.16
10.1.2.8

Erklärung

Frage 10 von 23

1

As packets travel from Mary to Robert, which three devices will use the destination MAC address
of the packet to determine a forwarding path? (Choose three.)

Wähle eine oder mehr der folgenden:

Hub1
Switch1
Router1
Switch2
Router2
Switch3

Erklärung

Frage 11 von 23

1

Mary is sending an instant message to Robert. The message will be broken into a series of
packets that will traverse all network devices. What addresses will populate these packets as they
are forwarded from Router1 to Router2?

Wähle eine der folgenden:

Erklärung

Frage 12 von 23

1

A network device needs to be installed in the place of the icon labeled Network Device to
accommodate a leased line attachment to the Internet. Which network device and interface
configuration meets the minimum requirements for this installation?

Wähle eine der folgenden:

a router with two Ethernet interfaces
a switch with two Ethernet interfaces
a router with one Ethernet and one serial interface
a switch with one Ethernet and one serial interface
a router with one Ethernet and one modem interface

Erklärung

Frage 13 von 23

1

Which transport layer protocol provides best-effort delivery service with no acknowledgment
receipt required?

Wähle eine der folgenden:

HTTP
IP
TCP
Telnet
UDP

Erklärung

Frage 14 von 23

1

Which layer of the OSI model controls the reliability of communications between network devices
using flow control, sequencing and acknowledgments?

Wähle eine der folgenden:

Physical
Data-link
Transport
Network

Erklärung

Frage 15 von 23

1

Which statements are true regarding ICMP packets? (Choose two.)

Wähle eine oder mehr der folgenden:

They acknowledge receipt of TCP segments.
They guarantee datagram delivery.
TRACERT uses ICMP packets.
They are encapsulated within IP datagrams.
They are encapsulated within UDP datagrams.

Erklärung

Frage 16 von 23

1

Which statements accurately describe CDP? (Choose three.)

Wähle eine oder mehr der folgenden:

CDP is an IEEE standard protocol.
CDP is a Cisco proprietary protocol.
CDP is a datalink layer protocol.
CDP is a network layer protocol.
CDP can discover directly connected neighboring Cisco devices.
CDP can discover Cisco devices that are not directly connected.

Erklärung

Frage 17 von 23

1

How does a switch differ from a hub?

Wähle eine der folgenden:

A switch does not induce any latency into the frame transfer time.
A switch tracks MAC addresses of directly-connected devices.
A switch operates at a lower, more efficient layer of the OSI model.
A switch decreases the number of broadcast domains.
A switch decreases the number of collision domains.

Erklärung

Frage 18 von 23

1

What must occur before a workstation can exchange HTTP packets with a web server?

Wähle eine der folgenden:

A UDP connection must be established between the workstation and its default gateway.
A UDP connection must be established between the workstation and the web server.
A TCP connection must be established between the workstation and its default gateway.
A TCP connection must be established between the workstation and the web server.
An ICMP connection must be established between the workstation and its default gateway.
An ICMP connection must be established between the workstation and the web server.

Erklärung

Frage 19 von 23

1

How does TCP differ from UDP? (Choose two.)

Wähle eine oder mehr der folgenden:

TCP provides best effort delivery.
TCP provides synchronized communication.
TCP segments are essentially datagrams.
TCP provides sequence numbering of packets.
TCP uses broadcast delivery.

Erklärung

Frage 20 von 23

1

A workstation has just resolved a browser URL to the IP address of a server. What protocol will
the workstation now use to determine the destination MAC address to be placed into frames
directed toward the server?

Wähle eine der folgenden:

HTTP
DNS
DHCP
RARP
ARP

Erklärung

Frage 21 von 23

1

Host A is sending a packet to Host B for the first time. What destination MAC address will Host A
use in the ARP request?

Wähle eine der folgenden:

192.168.0.1
172.16.0.50
00-17-94-61-18-b0
00-19-d3-2d-c3-b2
ff-ff-ff-ff-ff-ff

Erklärung

Frage 22 von 23

1

What are two common TCP applications? (Choose two.)

Wähle eine der folgenden:

TFTP
SMTP
SNMP
FTP
DNS

Erklärung

Frage 23 von 23

1

SwitchA receives the frame with the addressing shown. According to the command output also
shown in the exhibit, how will SwitchA handle this

Wähle eine der folgenden:

It will drop the frame.
It will forward the frame out port Fa0/6 only.
It will flood the frame out all ports.
It will flood the frame out all ports except Fa0/3.

	Erstellt von michael smith0754 vor mehr als 8 Jahre

Pretest for CCNA

CCNA PreTest

CCNA PreTest

Frage 1 von 23

Which three statements are true about the operation of a full-duplex Ethernet network?

Wähle eine der folgenden:

Erklärung

Frage 2 von 23

Which OSI layer header contains the address of a destination host that is on another network?

Wähle eine oder mehr der folgenden:

Erklärung

Frage 3 von 23

Which layer of the TCP/IP stack combines the OSI model physical and data link layers?

Wähle eine oder mehr der folgenden:

Erklärung

Frage 4 von 23

Which protocol uses a connection-oriented service to deliver files between end systems?

Wähle eine oder mehr der folgenden:

Erklärung

Frage 5 von 23

If the hubs in the graphic were replaced by switches, what would be virtually eliminated?

Wähle eine oder mehr der folgenden:

Erklärung

Frage 6 von 23

If host A sends an IP packet to host B, what will the source physical address be in the frame when it reaches host B?

Wähle eine oder mehr der folgenden:

Erklärung

Frage 7 von 23

HostX is transferring a file to the FTP server. Point A represents the frame as it goes toward the Toronto router. What will the Layer 2 destination address be at this point?

Wähle eine oder mehr der folgenden:

Erklärung

Frage 8 von 23

Which network device functions only at Layer 1 of the OSI model?

Wähle eine oder mehr der folgenden:

Erklärung

Frage 9 von 23

The host in Kiev sends a request for an HTML document to the server in Minsk. What will be the source IP address of the packet as it leaves the Kiev router?

Wähle eine der folgenden:

Erklärung

Frage 10 von 23

As packets travel from Mary to Robert, which three devices will use the destination MAC address of the packet to determine a forwarding path? (Choose three.)

Wähle eine oder mehr der folgenden:

Erklärung

Frage 11 von 23

Mary is sending an instant message to Robert. The message will be broken into a series of packets that will traverse all network devices. What addresses will populate these packets as they are forwarded from Router1 to Router2?

Wähle eine der folgenden:

Erklärung

Frage 12 von 23

A network device needs to be installed in the place of the icon labeled Network Device to accommodate a leased line attachment to the Internet. Which network device and interface configuration meets the minimum requirements for this installation?

Wähle eine der folgenden:

Erklärung

Frage 13 von 23

Which transport layer protocol provides best-effort delivery service with no acknowledgment receipt required?

Wähle eine der folgenden:

Erklärung

Frage 14 von 23

Which layer of the OSI model controls the reliability of communications between network devices using flow control, sequencing and acknowledgments?

Wähle eine der folgenden:

Erklärung

Frage 15 von 23

Which statements are true regarding ICMP packets? (Choose two.)

Wähle eine oder mehr der folgenden:

Erklärung

Frage 16 von 23

Which statements accurately describe CDP? (Choose three.)

Wähle eine oder mehr der folgenden:

Erklärung

Frage 17 von 23

How does a switch differ from a hub?

Wähle eine der folgenden:

Erklärung

Frage 18 von 23

What must occur before a workstation can exchange HTTP packets with a web server?

Wähle eine der folgenden:

Erklärung

Frage 19 von 23

How does TCP differ from UDP? (Choose two.)

Wähle eine oder mehr der folgenden:

Erklärung

Frage 20 von 23

If host A sends an IP packet to host B, what will the source physical address be in the frame when
it reaches host B?

HostX is transferring a file to the FTP server. Point A represents the frame as it goes toward the
Toronto router. What will the Layer 2 destination address be at this point?

The host in Kiev sends a request for an HTML document to the server in Minsk. What will be the
source IP address of the packet as it leaves the Kiev router?

As packets travel from Mary to Robert, which three devices will use the destination MAC address
of the packet to determine a forwarding path? (Choose three.)

Mary is sending an instant message to Robert. The message will be broken into a series of
packets that will traverse all network devices. What addresses will populate these packets as they
are forwarded from Router1 to Router2?

A network device needs to be installed in the place of the icon labeled Network Device to
accommodate a leased line attachment to the Internet. Which network device and interface
configuration meets the minimum requirements for this installation?

Which transport layer protocol provides best-effort delivery service with no acknowledgment
receipt required?

Which layer of the OSI model controls the reliability of communications between network devices
using flow control, sequencing and acknowledgments?

A workstation has just resolved a browser URL to the IP address of a server. What protocol will
the workstation now use to determine the destination MAC address to be placed into frames
directed toward the server?

Host A is sending a packet to Host B for the first time. What destination MAC address will Host A
use in the ARP request?

SwitchA receives the frame with the addressing shown. According to the command output also
shown in the exhibit, how will SwitchA handle this