Networking Basis Flashcards

1
Q

Tell me all OSI network layers

A

Physical
data link
network
transport
session, presentation, application

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2
Q

Which connection types are included in the Application layer?

A

Dns
www/http
P2p
Email
SMTP
Telnet
Ftp

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3
Q

Which connection types are included in the Presentation layer?

A

Html
Doc
Jpeg
Mp3
Avi
Sockets

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4
Q

Where is the Session established? (Session layer)

A

TCP
Sip
RPT
RPC - named pipes

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5
Q

Which connection types are included in the Transport layer?

A

TCP
UDP
Sctp
SSL
TLS

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6
Q

Which connection types are included in the Network layer?

A

Ip
ARP
IPsec
ICMP
Igmp
Ospf

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7
Q

Which connection types are included in the Data Link layer?

A

Ethernet
802.11
Mac/LLC
Valn
ATM
Hdp
Fiber channel

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8
Q

Tell me TCP/IP layers

A

Application
Transport
Internet
Network

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9
Q

Tell me the range and subnet mask for A network layer

A

1-126
255.0.0.0

127.0.0.0 - for loops and diagnostic

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10
Q

Tell me the range and subnet mask of B network layer

A

128-191
255.255.0.0

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11
Q

Tell me the range and subnet mask of C network layer

A

192-223
255.255.255.0

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12
Q

Tell me the range and subnet mask of D network layer

A

224-239
Reserved for multicasting

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13
Q

Tell me the range and subnet mask of E network layer

A

240-254
Experimental

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14
Q

Tell Cryptography algorithm families

A

MD5
SHA-1
SHA-256
HMAC-MD5
HMAC-SHA-1
RSA and DSA

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15
Q

Tell me public/private keys algorithms

A

RSA
DSA
ECDSA
ED25519

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16
Q

Name of CA/RA authority

A

x509

17
Q

Call and describe all classes of web certificates

A

0 - Used for testing
1 - Used for individuals with a focus on verification of email
2 - Used for organizations for which proof of identity is required
3 - Used by servers and software signing for which independent verification and checking of identity and authority is done by the issuing certificate authority
4 - Used for online business transaction between companies
5 - Used for private organizations or governmental security

18
Q

Which server assign a dynamic IP address

A

DHCP

19
Q

How IP assignment works? Tell all steps and how it calls

A

Discover
Offer
Request
Ack

20
Q

Tell all DNS record types

A

A - association between DNS name and IP address
AAAA - the same as A, but for IPv6
CNAME - Alias of one name to another
MX - List of mail exchange servers that accept email for a domain
NS - Name server record
PTR - Pointer to a canonical name
SOA - Specifies authoritative information about a DNS zone, including the primary name server, the email of the domain administrator, the domain serial number, and several timers relating to refreshing the zone.
SOA - Generalized service location record, used for newer protocols instead of creating protocol-specific records such as MX