Ethernet Networking and Cisco Layers practice exam for Cisco CCNA certification

The Cisco CCNA certification requires that you are completely familiar with ethernet and fastethernet. CCNA certification practice exams are a great way to prepare for the Cisco CCNA certification and for jobs that will require you to install, maintain, and configure ethernet and fastethernet routing and switching on Cisco routers and switches. This free practice exam will help you to know the Cisco ethernet routing and switching well enough that you can productively apply your Cisco ethernet routing and switching knowledge to any network. The Cisco CCNA certification is an entry level certification which will equip you for the type of work that requires extensive use of ethernet routing and switching.

CSMA/CD is a media contention protocol that works on which ethernet modes?

1. Full Duplex.
2. Half Duplex.
3. Half or Full Duplex.
4. 10 mbps

What is the primary purpose of the Core layer from the Cisco three layer hierarchy?

1. To switch traffic as fast as possible
2. Provide user level and LAN access to end users
3. Provide routing, filtering, and if needed, WAN access
4. Creation of separate collision domains

What is the main purpose of the Distribution layer from the Cisco three layer hierarchy?

1. To switch traffic as fast as possible
2. Provide user level and LAN access to end users
3. Provide routing, filtering, and if needed, WAN access
4. Creation of separate collision domains

What is the main purpose of the Access layer from the Cisco three layer hierarchy?

1. To switch traffic as fast as possible
2. Provide user level and LAN access to end users
3. Provide routing, filtering, and if needed, WAN access
4. Creation of separate collision domains

Which function is not a role of the Cisco Access Layer?

1. Access control and policies.
2. Collision domain segmentation.
3. LAN connectivity to the distribution layer
4. Routing protocol redistribution

Fast Ethernet is designated by which IEEE specification?

1. 802.3q
2. 802.2
3. 802.3u
4. 100basefx

Which design characteristic of UTP cabling determines the distance the digital signal can travel on the wire with a minimum of signal loss?

1. The number of twists per inch
2. The pairs are twisted together
3. The antistatic shiething
4. The cable length

A straight through cable can not be used in which instance?

1. Connecting a router to a switch
2. Connecting a server to a hub or switch
3. Connecting a PC to a hub or switch
4. Connecting a hub to a switch

Which of the following makes use of a dramatically different physical layer specification than the others?

1. HDLC
2. RS232
3. ISDN
4. V.35

DTE is typically synonymous with which acronym in the following list?

1. CPE
2. DCE
3. CSU/DSU
4. NT1

An ISDN BRI interface uses which of the following?

1. 2 64k "D" channels and 1 16k "B" channel.
2. 2 64k "B" channels and 1 16k "D" channel.
3. 1 64k "B" channel and 2 16k "D" channels.
4. 2 64k "B" channels and 1 64 k "D" channel.

An ISDN PRI provides T1 data speeds using which of the following?

1. 23 64k "D" channels and 1 16k "B" channel.
2. 23 64k "B" channels and one 16k "D" channel.
3. 23 64k "D" channels and 1 64k "B" channel.
4. 23 64k "B" channels and one 64k "D" channel.

A rollover or "console cable" has which of the following pinouts?
The pin numbers are paired using a dash (-) to denote the matching pins on each wire, the pairs are comma separated

1. 1-8, 2-7, 3-6, 4-5, 5-4, 6-3, 7-2, 8-1
2. 1-1, 2-2, 3-3, 4-4, 5-5, 6-6, 7-7, 8-8
3. 1-3, 2-6, 3-1, 4-4, 5-5, 6-2, 7-7, 8-8
4. 1-3, 2-6, 3-1, 4-5, 5-4, 6-2, 7-7, 8-8

Which of the following is not an issue in the selection of a Cisco hub?

1. 10 or 100mbps requirement.
2. Port density.
3. Managed or Manageable.
4. LAN segmentation.

Which of the following is not a point of consideration when selecting a Cisco router?

1. Scalability.
2. Capacity and performance.
3. Graphical User Interface.
4. Port types and density.

Which of the following is not a point of consideration when choosing a Cisco switch?

1. Port density.
2. LAN segmentation.
3. Managed or manageable.
4. Common or different user interfaces.

A crossover cable cannot be used in which instance?

1. Connecting a hub to a switch
2. Connecting a router to a hub or switch.
3. Connecting 2 PC's together without a hub or switch.
4. Interconnecting hubs.

Identify the OUI or Organizational Unit Identifier.

1. The left most 6 digits in a MAC address
2. The left most 2 octets in an IP address
3. The right most 6 digits in a MAC address
4. The right most 2 octets in an IP address

What defines a PDU?

1. The data payload encapsulated in a protocol's delimiting framework of bits.
2. The network protocol control information for a packet of data.
3. Layer specific control information for each respective layer of the OSI model, usually held in the header of the encapsulated data but sometimes in the trailer.
4. A network packet.

State transitions are:

1. The change in the status of a data circuit that is terminated on an interface to either UP or DOWN
2. The change in status of a communications session between two hosts.
3. When a territory joins the Union.
4. Changes in voltage signals at the physical layer, either high to low or low to high.

Full duplex is defined as:

1. A two way communication in which transmitting and receiving devices can send or receive at the same time over seperate media.
2. A two way communication in which transmitting and receiving devices take turns sending or receiving over a common media, after contending for access to the media.
3. Redundant network lines linking two or more networks over multiple paths.
4. ISL trunking

Half Duplex is defined as:

1. A two way communication in which transmitting and receiving devices can send or receive at the same time over seperate media.
2. A two way communication in which transmitting and receiving devices take turns sending or receiving over a common media, after contending for access to the media.
3. Redundant network lines linking two or more networks over multiple paths.
4. ISL trunking

Simplex is defined as:

1. A two way communication in which transmitting and receiving devices can send or receive at the same time over seperate media.
2. A two way communication in which transmitting and receiving devices take turns sending or receiving over a common media, after contending for access to the media.
3. Redundant network lines linking two or more networks over multiple paths.
4. A one way communication between sender and receiver.

RJ connector means:

1. Router Jack connector
2. Rectangular Jack connector
3. Registered Jack connector
4. Round Jack connector

Which type of signaling uses the entire bandwidth of the transmission media?

1. Broadband
2. Baseband
3. Wideband
4. System7