| Data Communication and Computer networks | |||
| Easy | Medium | Difficult | |
| 2019 DEC | 1. Cryptography basics 2. Network Security basics 3. Bluetooth 4. DES 5. ICANN Abbreviation | 1. Throughput 2. Three-level hierarchy 3. Transaction problems 4. Fiber optic cable 5. IP-Classes 6. Layers | 1. Modulus Operation |
| 2019 JUNE | 1. IPv4 classes(2) 2. TCP/IP Layers 3. Topologies 4. RARP 5. RSA 6. Attack Types | 1. Layers 2. Attacks 3. Data Link Layer 4. Loopback Address 5. Subnet Masking | 1. Euler function 2. Euler’s phi function |
| 2018 DEC | 1.3rd generation(AMPS,CDMA, D-AMPS,Broadband CDMA) 2.Session layer | 1.CIDR subnet masking 2.Firewall,VPN basics 3.Protocols(HTTP,DNS,TCP) 4.TCP and UDP flow control 5.Blowfish,DES,IDEA,RC5 bit length 6.IP addressing 7. Miscellaneous 8.symmetric key cryptographic system mis | — |
| 2018 JULY | 1.IPV4 address in binary notation 2.Symmetric block ciphers 3.Challenge-Response authentication 4.Caesar Cipher 5.minimum Hamming distance | 1.Slotted ALOHA 2.Finding frequency in period of signal 3.DC(AMPS,CDMA,DSSS,3rd generation) 4.Switching(packt,circuit,Message) 5.Transposition Cipher | — |
