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Practice Final NETAC
| Question | Answer |
|---|---|
| Admin uses "password" as router password. Which applies? A) Strong, min 10 chars B) Weak, commonly used | B) Weak, commonly used |
| PC IP address command? A) show ip nat translations B) show interfaces C) ipconfig D) copy running-config startup-config | C) ipconfig |
| Which two are intermediary devices? A) Wireless LAN controller B) Server C) Assembly line robots D) Retail scanner E) IPS F) Gaming console | A) Wireless LAN controller E) IPS |
| Network security statement? A) Ensures sensitive data available to authorized users B) Syncs traffic using timestamps C) Supports growth per design D) Prioritizes delay-sensitive traffic | A) Ensures sensitive data available to authorized users |
| Switch virtual interface (SVI) characteristic? A) Comes preconfigured B) Created in software, needs IP/subnet for remote access C) No shutdown needed D) Needs physical hardware | B) Created in software, needs IP/subnet for remote access |
| Switch1> config t shows "^ Invalid input". Why? A) Must enter privileged EXEC mode first B) Must type full "configure terminal" C) Must connect via console D) Already in global config mode | A) Must enter privileged EXEC mode first |
| Ping 127.0.0.1 tests? A) TCP/IP stack locally B) Connectivity to host C) Path traffic takes D) Destination device type | A) TCP/IP stack locally |
| Which three OSI layers match TCP/IP App layer? A) Application B) Presentation C) Session D) Data link E) Network F) Transport G) Physical | A) Application B) Presentation C) Session |
| Two OSI layers same as TCP/IP layers? A) Data link B) Network C) Transport D) Physical E) Session | B) Network C) Transport |
| Transport layer PDU during de-encapsulation? A) Packet B) Bits C) Frame D) Segment | D) Segment |
| high speed, long distance Wireless STP Optical fiber Coaxial | Wireless |
| TV wiring, customer premises Wireless STP Optical fiber Coaxial | STP |
| mobility Wireless STP Optical fiber Coaxial | Optical fiber |
| high interference copper Wireless STP Optical fiber Coaxial | Coaxial |
| Fiber-optic cabling characteristics (choose 2)? A) High signal loss B) No electricity conduction C) Primarily backbone D) Multimode carries multiple devices E) LEDs for single-mode, lasers for multimode | B) No electricity conduction C) Primarily backbone |
| OSI Physical layer term for bit transfer rate? A) Throughput B) Bandwidth C) Latency D) Goodput | A) Throughput |
| Ethernet Data Link sublayers (choose 2)? A) SFD B) CSMA C) FCS D) MAC E) LLC | D) MAC E) LLC |
| Shared media LAN hybrid topology example? A) Bus B) Partial mesh C) Ring D) Extended star | D) Extended star |
| Router receives Layer 2 frame. What happens? A) Determines best path B) Forwards frame on same segment C) De-encapsulates frame D) Re-encapsulates packet into new frame | C) De-encapsulates frame |
| CSMA/CD no longer needed because? A) IPv6 addresses unlimited B) Full-duplex Layer 2 switches C) CSMA/CA used D) Gigabit Ethernet E) Half-duplex switches | B) Full-duplex Layer 2 switches |
| Default gateway misconfigured. Impact? A) Can reach remote, not local B) Can reach local, not remote C) No impact D) Cannot communicate locally | B) Can reach local, not remote |
| Why is NAT not needed in IPv6? A) Public addresses abundant B) Integrated security removes need C) IPv6 header improves routing D) End-to-end connectivity improved | A) Public addresses abundant D) End-to-end connectivity improved |
| IPv4 header field containing destination address? A) TTL B) Protocol C) Destination IPv4 address D) Header checksum | C) Destination IPv4 address |