Network+ (N10-008)
Adjusting MTU Size - -Windows: Netsh; Linux: Ifconfig; MAC: Manually
- Can OSI Layer 2 communicate will layer 5 - -No, OSI Layers can only
communicate with layers one above or below.
- Cons of MTU - -Certain routers cant handle it.
- Describe and Define the ACK TCP Flag - -Acknowledgment; First Packet
to Receiver
- Describe and Define the FIN TCP Flag - -Finish; Request Connect
termination
- Describe and Define the PSH TCP Flag - -Push; Buffering needs to be
controlled
- Describe and Define the RST TCP Flag - -Reset; Error in transmission
- Describe and Define the SYN TCP Flag - -Synchronization; Starts the
Messages
- Describe and Define the URG TCP Flag - -Urgent; Data is forward
immediately and notifies receiver to prioritize all packets.
- Describe Transmission Control's function - -Establishing & Terminating,
Media Access Management, Flow Control, Error Control, Access Control.
- Detailed Maximum Segment Size - -Data Segment & Header total Size
should be less than MTU Size.
- Dialog Control what are the three types. - -Simplex, Half Duplex, Full
Duplex
- Does a router determine the best path to destination? - -Yes
- Does the Router provide physical or logical connections for the network
- -It Provides Logical Address scheme
- Ethernet Frame Format - -1. Preamble: 7 Bytes; An alternating 1,0
pattern provides a 5 MHz clock at the start of each packet, which allows
the receiving devices to lock the incoming bit stream
2. Start Frame Delimiter (SFD)/Synch: 1 Byte; The preamble is seven
octets and the SFD is one octet (synch); The SFD is 10101011, where the
, last pair of 1s allows the receiver to come into the alternating 1,0 pattern
somewhere in the middle and still sync up to detect the beginning of the
data
3. Destination Address (DA): 6 Bytes; This transmits a 48-bit value using
the least significant bit (LSB) first; Used by receiving stations to determine
whether an incoming packet is addressed to a particular node; Can be an
individual address or a broadcast or multicast MAC address; A broadcast is
all 1s—all Fs in hex— and is sent to all devices; A multicast is sent only to
a similar subset of nodes on a network
4. Source Address (SA): 6 Bytes; a 48-bit MAC address used to identify the
transmitting device, and it uses the least significant bit first; Broadcast
and multicast address formats are illegal within the SA field
5. Length or Type: 2 Bytes; 802.3 uses a Length field, but an Ethernet_II
frame uses a Type field to identify the Network layer protocol; The old,
original 802.3 cannot identify the upper-layer protocol and must be used
with a proprietary LAN—IPX, for example
6. Data: 46 - 1500 Bytes (Packet); A packet sent down to the Data Link
layer from the Network layer; The size can vary from 46 to 1,500 bytes
7. Frame Check Sequence (FCS): 4 Bytes; A field at the end of the frame
that's used to store the cyclic redundancy check (CRC) answer; When a
receiving host receives the
frame and runs the CRC, the answer should be the same; If not, the frame
is discarded, assuming errors have occurred
- Ethernet/ IP Headers Purpose - -Addressing & Structure
- Fixed Payload - -Frames become fixed Size and slightly more efficient
- Fragmentation at the network layer does - -Divides large packets into
smaller ones so it can be sent easier.
- Full Duplex - -Communication that happens in two directions at the
same time.
- Give a example of Character Code Translation - -ASCII
- Half Duplex - -Communication between two devices whereby
transmission takes place in only one direction at a time.
- IPv4 Header - -Minimum Length is 20 Bytes and Maximum Length is 60
Bytes.
Adjusting MTU Size - -Windows: Netsh; Linux: Ifconfig; MAC: Manually
- Can OSI Layer 2 communicate will layer 5 - -No, OSI Layers can only
communicate with layers one above or below.
- Cons of MTU - -Certain routers cant handle it.
- Describe and Define the ACK TCP Flag - -Acknowledgment; First Packet
to Receiver
- Describe and Define the FIN TCP Flag - -Finish; Request Connect
termination
- Describe and Define the PSH TCP Flag - -Push; Buffering needs to be
controlled
- Describe and Define the RST TCP Flag - -Reset; Error in transmission
- Describe and Define the SYN TCP Flag - -Synchronization; Starts the
Messages
- Describe and Define the URG TCP Flag - -Urgent; Data is forward
immediately and notifies receiver to prioritize all packets.
- Describe Transmission Control's function - -Establishing & Terminating,
Media Access Management, Flow Control, Error Control, Access Control.
- Detailed Maximum Segment Size - -Data Segment & Header total Size
should be less than MTU Size.
- Dialog Control what are the three types. - -Simplex, Half Duplex, Full
Duplex
- Does a router determine the best path to destination? - -Yes
- Does the Router provide physical or logical connections for the network
- -It Provides Logical Address scheme
- Ethernet Frame Format - -1. Preamble: 7 Bytes; An alternating 1,0
pattern provides a 5 MHz clock at the start of each packet, which allows
the receiving devices to lock the incoming bit stream
2. Start Frame Delimiter (SFD)/Synch: 1 Byte; The preamble is seven
octets and the SFD is one octet (synch); The SFD is 10101011, where the
, last pair of 1s allows the receiver to come into the alternating 1,0 pattern
somewhere in the middle and still sync up to detect the beginning of the
data
3. Destination Address (DA): 6 Bytes; This transmits a 48-bit value using
the least significant bit (LSB) first; Used by receiving stations to determine
whether an incoming packet is addressed to a particular node; Can be an
individual address or a broadcast or multicast MAC address; A broadcast is
all 1s—all Fs in hex— and is sent to all devices; A multicast is sent only to
a similar subset of nodes on a network
4. Source Address (SA): 6 Bytes; a 48-bit MAC address used to identify the
transmitting device, and it uses the least significant bit first; Broadcast
and multicast address formats are illegal within the SA field
5. Length or Type: 2 Bytes; 802.3 uses a Length field, but an Ethernet_II
frame uses a Type field to identify the Network layer protocol; The old,
original 802.3 cannot identify the upper-layer protocol and must be used
with a proprietary LAN—IPX, for example
6. Data: 46 - 1500 Bytes (Packet); A packet sent down to the Data Link
layer from the Network layer; The size can vary from 46 to 1,500 bytes
7. Frame Check Sequence (FCS): 4 Bytes; A field at the end of the frame
that's used to store the cyclic redundancy check (CRC) answer; When a
receiving host receives the
frame and runs the CRC, the answer should be the same; If not, the frame
is discarded, assuming errors have occurred
- Ethernet/ IP Headers Purpose - -Addressing & Structure
- Fixed Payload - -Frames become fixed Size and slightly more efficient
- Fragmentation at the network layer does - -Divides large packets into
smaller ones so it can be sent easier.
- Full Duplex - -Communication that happens in two directions at the
same time.
- Give a example of Character Code Translation - -ASCII
- Half Duplex - -Communication between two devices whereby
transmission takes place in only one direction at a time.
- IPv4 Header - -Minimum Length is 20 Bytes and Maximum Length is 60
Bytes.
