Comptia Network+ (N10-006) Part 5: Advanced Ip Networking

Front 1

What is the difference between Peer-to-Peer and Client/Server networks?

Back 1

Peer-to-peer shares data between clients. Client/server shares data ONLY between the server and individual clients.

Hint 1

Data sharing

Front 2

What is VPN?

Back 2

Virtual Private Network. Creates a 'tunnel' between a network and a remote client or network using encapsulated private IP addresses.

Front 3

What are some VPN protocols?

Back 3

-PPTP (Port to Port Tunneling Protocol), widely used by Microsoft.

-L2TP/IPsec (Layer 2 Tunneling Protocol with IPsec), widely used by older Cisco equipment.

-SSTP (Secure Socket Tunneling Protocol), more often used by recent Cisco equipment.

-IKEv2, a pure IPsec protocol.

Front 4

What is the difference between a VPN Concentrator and a VPN Endpoint?

Back 4

Concentrators are double-duty VPN and router; Endpoints are strictly VPN.

Front 5

What's the difference between client-to-site and site-to-site VPN?

Back 5

Site-to-site connects separate networks; client-to-site connects a single client to a network.

Hint 5

Networks

Front 6

What type of switch is required to create a VLAN?

Back 6

A managed switch. (Unmanaged switches have no VLAN capability.)

Hint 6

It's gotta be configured somehow...

Front 7

What is a trunk port?

Back 7

Trunk ports communicate all traffic on all VLANs, usually for the purpose of interconnected switches.

Front 8

What is the purpose of a VLAN?

Back 8

Splits one broadcast domain into two or more broadcast domains, allowing more than one broadcast domain on a single switch.

Front 9

What is interVLAN routing?

Back 9

A virtual router on a higher-end switch, used to interconnect the separate VLANs. Performs like a router in that it routes traffic between the separate VLANs. (Otherwise, a physical router is required.)

Hint 9

Interconnectivity

Front 10

What is the purpose of a rollover cable?

Back 10

Used to directly manage a switch or router. One side (switch/router) uses a DB9 serial connection; the other uses an RJ45 connector (which is wired differently from an Ethernet jack).

Front 11

What is Port Bonding?

Back 11

Configuring two or more ports on a switch to act as one, for the purpose of increasing the bandwidth between two switches.

Front 12

What protocol is used for Port Bonding?

Back 12

LACP - Link Access Control Protocol.

Front 13

If Port Bonding is configured but not working, what setting is the likely cause?

Back 13

At least one port must be set to Active.

Front 14

What is port mirroring?

Back 14

It mirrors all traffic being sent to one port to a second port for monitoring reasons.

Front 15

What is QoS and its use?

Back 15

Quality of Service, a.k.a. traffic shaping. Allows for bandwidth management, often by traffic type, MAC address, etc; and by priority (H/M/L), Mb/s, or percentage.

Front 16

What are the differences between a firewall, IDS (Intrusion Detection System), and IPS (Intrusion Prevention System)?

Back 16

-Firewall filters

-IDS notifies (nothing else)

-IPS takes action to stop

Front 17

What is the loopback address for IPv6?

Back 17

0:0:0:0:0:0:0:1

OR

::1

Front 18

How are subnet masks handled in IPv6?

Back 18

ALL subnet masks in IPv6 are /64.

Front 19

How is a local (link-local) IPv6 address often generated (EUI-64)?

Back 19

Always starts with FE80. For the local (last 64 bits), use the MAC address, switch the 7th bit (of the first byte) to 1 (be careful to convert to binary first), split it in half, add 'FFFE' between. (Extended Unique Identifier 64)

Front 20

What is the public IPv6 address?

Back 20

Labeled as 'IPv6 Address' in IPCONFIG; the last half uses the same characters as the Link-local address.

Front 21

What is required if your ISP is not IPv6 ready?

Back 21

An IPv6 tunneling protocol - Toredo or 6to4. GoGo Client (gogo6.com) can provide such a service. It encapsulates IPv6 packet in an IPv4 frame.

Front 22

What are American telephone line long-distance signaling specifics?

Back 22

DS0 - 64kbps digital signals (converted from analog - 8-bit samples @ 8kbps)

DS1 - 24 DS0 signals on T1 cable (1.5Mbps)

DS2 - 28 DS1 signals on T3 cable

Front 23

What are telephone line/channel/speed specifics, American and European?

Back 23

Carrier Channels Speed

T1 24 1.544Mbps

T3 672 44.736Mbps

E1 32 2.048Mbps

E3 512 34.368Mbps

Front 24

What is used to interconnect T1 lines?

Back 24

CSU/DSU (Channel Service Unit/Data Service Unit)

Front 25

What is a BERT test?

Back 25

Used to test connectivity and data throughput on a T1 line.

Front 26

What is a T1 crossover?

Back 26

Used to directly connect two local CSU/DSU units.

Front 27

What's the difference between frequency division multiplexing and time division multiplexing?

Back 27

Frequency - analog signal's frequency is raised or lowered to an isolated frequency.

Time - signal is compressed (or sampled) and intermixed with other signals, with separate signals using a specific time interval.

Front 28

What are OC lines and their use?

Back 28

OC is used at the tip tiers of the internet, carrying SONET signals.

Front 29

What OC carriers are important to CompTIA?

Back 29

SONET lvl|Line speed|Signal

OC1 51.85Mbps STS-1

OC3 155.52Mbps STS-3

OC12 622.08Mbps STS-12

Front 30

What's a good way to remember OC carrier parameters?

Back 30

OC1 is 51.85Mbps. All other OC numbers are mulitipliers of the OC1 standard. (OC12 = 12*51.85, e.g.)

Front 31

What is DWDM?

Back 31

Dense Wave Division Multiplexing. Uses multiple light colors one one fiber line, creating as many as 150 channels on one line, using the SONET standard.

Front 32

What is Frame Relay?

Back 32

A type of packet switching used originally on T1. Stable, error-tolerant.

Front 33

What is ATM?

Back 33

Asynchronous Transfer Mode. A type of packet switching capable of handling all types of data - voice, video, etc. 53 bytes long.

Front 34

What is MPLS?

Back 34

Multiprotocol Label Switching, designed for IP, capable of handling all data in IP format.

Front 35

What are the important dial-up parameters?

Back 35

56kbps, PPP (point-to-point protocol), requires a modem plus a phone number, username, and password supplied by the ISP.

Front 36

What are the important DSL parameters?

Back 36

Digital Subscriber Line. Available as Synchronous (matching up/download) and Asynchronous (slower upload speed). Requires a modem with RJ11 and RJ45 jacks. Also requires DSL filter for analog telephones. Originally used PPPoE (PPP over Ethernet).

Front 37

What are the important cable ISP parameters?

Back 37

Requires a modem with coaxial RG6/F-type and RJ45 jacks. Normally didn't use PPPoE, and often required a cloned MAC address.

Front 38

What are the important satellite ISP parameters?

Back 38

Slower than DSL or cable. Requires a satellite dish and a modem. Modem has RG6/F-type (one for upload, one for download) and RJ45 jacks. Some latency involved with signal.

Front 39

What wireless (cellular) signal types are important to CompTIA?

Back 39

-HSPA, running at 1Mbps; or HSPA+, running at multiple Mbps, a.k.a. 3G.

-LTE, running at tens of Mbps, a.k.a. 4G.

Front 40

What is the WiMax (cellular) standard?

Back 40

802.16 (vs 802.11 for Wi-Fi)

Front 41

What is ISDN?

Back 41

Integrated Services Digital Network. Telephone number associated, running at 64 or 128kbps. Used a terminal adapter, and required ISDN phones.

Front 42

What is BPL?

Back 42

Broadband over Powerlines, using electrical supply lines to carry Ethernet.

Front 43

What Remote Desktop technologies are important to CompTIA?

Back 43

-TightVNC, using port 5900.

-Microsoft Remote Desktop, using RDP protocol and port 3389.